Volume 17 (1868) (428 pages)

130 The Mining and Scientific Press. Our Lhdusirvial Latr. [From the Mechanics’ Fair Daily Press.] General Review of the Exhibition. CLASS IX. Glass, Pottery, and Clay Ware, Tbe Pacifie Glass Works, Bennett & Co., whose factory is at the corner of Iowa and Mariposa streets at the Potrero, make a fine exhibition of all the more useful articles which are demanded by the trade on this coast. Tbey are chiefly of the common hottle-green color, which is given to the glass hy an infinitesimal qnantity of the protoxide of iron, incidentally intermixed. Every variety of ordinarily useful hottlemay heseen, hesidesan assortment of willow-cased demijohus, carboys, etc., all of which may also be seen at Jobn Taylor & Co.’s, the agents, No. 514 Washington street. These are the only glass works in operation at the present time on tbe Pacific coast. The San Francisco Glass Works were. destroyed hy fire some time ago, notwithstanding which they are represented by a very fine display at the Vair, including everytbing that is made at ordinary glass factories, useful as well as ornamental and astouishing. Tbere are hottles of all sizes and colors, enps for ordinary and chemical uses, a speaking trumpet, rods, tuhes, canes, flag-poles, stoppers, vases, halls, bollow globes for lamps, carboys, ship-lights, ink hottles, vials, ete. ; in sbort all kinds of flint, German flint, and green and black glass ware. The chimney of the late works may be seen standing on Townsend street, between Tbird and Fourth. We are pleased to learn that these works are to he rehuilt speedily. The proprietor, Carlton Newman, has heen struggling energetically for the estahlishment of a creditahle industry, and is deserving of encouragement and support. Glass-cutting on plain, colored and ground glass, is represented, hy Thomas O'Neill, and by John Mallon, who execute all kinds of lettering and ornamental work, desirahle for signs, doors, sky-lights, church windows, domes, etc. Mirrors of the ricbest quality and appearance may be seen in the art gallery, placed there by Whittman, Fuller & Co., at the southern end, with very tasteful plain frames, and by Jones & Wooll at the northern end, with gilded frames. Robert Mil:s also has some heautiful mirrors to the left of the fountain, aud some artistic colored glass paintings, for church windows and the like, which may be ohserved in the windows above the gallery at the western end of the Pavilion, viz: “Christ on the Cross,” a horse, a little shepberdess, a dove, and_ some ornamental designs. Sign-painting on glass is represented by N. V. Gallagher, J. W. Cherry and Sweett & Gadsby. Fine imported porcelain and glassware, statuary, etc, are exhibited by R. A. Swain, and hy Haynes & Lawton, ‘The heautiful glass cases of these firms, and the contents thereof, display more of the luxurious tastefulness of opulence than anything else in the exhihition. The former show imported crockery, glassware, white and decorated China, looking glasses, gohlets, statuary, etc.; the latter make tahle articles and silver plate more of a specialty. One of the most interesting exhibitions in any department, is that of Issac Lohree . : & Co., representing the Golden State Pottery Works at Antioch, Contra Costa County, the trade depot of which is at No. 516 Commercialstreet. It comprisesa very creditahle showing of almost all varieties of stoneware, earthenware, Rockingham ware, flower-pots, water and drain pipes, yellow ware, stovelinings, fire-brick, fire tilo,retorts, tanke, tuhs, etc., entirely of home manufacture, and offered to the trade at 25 per cent. cheaper tban the imported ware. We noticed also churns, water-filters, drain pipes, beer hottles, hacks and cheeke for mantels mnade of stone ware; also pitchers and spittoons made of Rockingham ware. The material is procured mainly in the vicinity of the works in Contra Costa Couuty. Many of the articles are ornamented with artistic bas reliefs of figures aud tlowers. The pottery works at the Mission have been discoutinued, so that this is now the only exteusive enterprise of the kind in operation in the State. Water and drain pipes made of asphaltum cement, are exhihited hy Egan Brothers, and Wise & Rohinson. ‘The same material as applied toroofing and paving, is exhibited in models. The Benicia Cement Works bave a large number of kegs of their commercial article, together with specimens of the cement after it has hecome fixed. The capacity of the works is 300 barrels a day. Brick is not represented at all. An opportunity to test and compare the productions of different localities, wbicb are competing in the supply of the San Francisco market, ought to have been afforded to the numerous lot-bolders and expectant builders who visit the Fair, and the result could not bave heen otherwise than beneficial to the manufactnrers of tbe best article. Allied natural productions, which belong to different classes, are the ‘‘electro silicon,” or “magic brilliant,” intended for family polishing, = kind of fine chalk, which is exhihited amongst the articles of table ware without name or locality of production; and the mineral or rock paints of O. A. Olmstead, from Olmstead’s Mills, in Sonoma county, of which there are twelve varieties of color. CLASS X, Wood and Wood Work. Owing to increased pressure both for time and space we shall he restricted to a ‘mere mention” of many important articles, which may be taken up, however, and treated separately hereafter. Elam & Howes exbihit huckets, tubs, hoxes, kegs, wash-boards, refrigerators, hutter kits, churne, washing machines, strawherry baskets, hroom and pail bandles, potato mashers, towel and hread rollers, ete ; all of their own manufacture. Geo. L. Wenzel exhihits specimens of California oak from Clear Lake, and some coopering of that material, which bas the advantage of never heing worm eaten. Oak is very plentifnl in the section named, the trees growing from 38 to 614 feet in diameter, and 40 to 80 feet in hight. Brusb and broom manufactures are exhihited hy the San Francisco Brnsh Factory, G. M. Zan, and by the California Brusb Factory, each varying a little from the other in their specialty. Edward Galpen also exhihits wooden ware, similar to Elam & Howes’. Shingles are turned out every evening hy F, A. Huntington’s shingle making machine, at the rate, when worked up to time, of 3,000 an hour. This machine was built hy Geo. T. Pracy, at 109 Mission street, and deserves further notice at a future time, Splendid specimens of California laurel may be seen in the Music Room, representing the estahlishment of John D. Boyd, equal in effect to the finest productions of tropical forests. Specimens of graining, imitation mosaic and inlaid work, are shown by Boyd, Geo. A. Brush, C. Roemer and Wm. O”’Day. Roemer shows a heautiful pillar made out of different ornamental woods. J. Rolland sbows samples of inlaid floors. A hand-organ of fine inlaid work, made in Europe, is lahelled ‘‘In commemoration of the Hayes & Higgius election het, Sept. 11, 1867.” But the most elahorate specimen of inlaid work is the Japanese cahinet in the music room, without lahel. The Pacific Barrel Company, Fliut, Peahody & Co., exhibit machine-made staves and-harrels of pine wood grown in California. Their factory is at the Potrero. Fulda & Son make‘ a fine exhibition in wine cooperage, They have three very large tuns, two of them for R, Snyder, of Sonoma county. Anoval one, made to fit into arecess in Mr. Snyder’s cellar, contains 890 gallons, and cost 18 cents per gallon, or $160 20. Sturger’s improved weather-proof window frame bas the sash grooved and running on a raised strip in the frame. The wind and weather proof results aimed at are effectively attained in a simple manner. Lasts are exhihited hy Shephard & Carroll, and Peter H. Fluck, of the natural form of the foot. A stave-jointer and gauging machine are exhibited hy J. W. Alesworth, of Santa Cruz, which have already becn noticed. Washing machines are on hand in numbers. There is the Dixie, a simple lever arrangement which rubs and rolls; the Rasmussen, similar to the Dixie in principle, hut double and more complicated; the Pioneer Washer, an oscillating rotary machine, being simply » contrivance by which four tusks are made to reach down into the tuh, aud to rotate the clothing first oue way . Patterson Combined Washer and Wringer, exhihited by Miss A. W. McClellan, in which the clothing lies on a ribbed bottom and is rolled over by a large rihhed roller weighing sixty pounds; and the Vail machine, for blankets and similar beary articles, which looks like, and is nothing but a asmall wooden stamp mill, in which the article is pounded in soap suds until it is clean. School furniture of a substantial cbaracter, witb iron under-pinning, is exhibited from Warren Holt’s Pacifie School Institnte. In general fnrnitnre, Johnson & Best show a splendid black walnut hook-case, and other office furniture; Bryant & Stra. han, a magnificent side-hoard, with carved birds of very artisticexecution; Wigmore & Palmer, & variety of scbool-room, office and library furuiture, of very superior execution, amongst which tbe Pompeiian Secretary, inimitation of designs from the huried city, is especially worthy of examination; N. P. Cole, a variety of California rosewood and laurel, and some black walnut pieces; Goodwin & Co., fine rosewood furniture and chairs; Huntington & Co., bedding with rubher springs. Hat and wig hlocks are exhibited by Gifford & Linsley. Outside there is a gigantic pine stern knee from Stillighomish Slough, W. T., cut for the CaliforniaSteam Navigation Co., which is 17 feet long, and bas a throat of 4 feet 6 inches; a pine log, sawed at Port Ludlow, W. T., 28 by 32 inches in dimensions, 48 feet long, and containing 3,580 feet of lumber, having heen cut for the San Marcial Silver Mining Company; aud a log of California laurel, cut hy L E. Thayer, 2% feet square and 50 feet long. Snow & Roos exhihit picture frames; G. A. British shows walnut doors with oak casing; Feldman & Co., and Thurnaur & Zinn, willow ware; and P. Gibot, spiral stairs. CLASS XI. Minerals, Kustel’s collection is the leading feature of the exhibition in this department. It is a very complete methodical collection, comprising crystallized and characteristic specimens of all the commonly found species, and especially of the leading gold, silver, copper, lead and iron ores, It is just such a collection as everyhody must have access to that desires to hecome familiarized in any degree with minerology. The lahor aud careful attention of years is usually necessary for the collection of a cabinet of this character and quality of specimens. More showy cahincts can he seeu in any mining camp; but the difference is very easily discerned hy all who have learued to distinguish pyrites from gold, or zinc hlende from the sulpburet of silver. Specimens of mcerschaum and amber, in their raw state, may he seen in the showease of Charles Kohlman, pipe manufacturer. There are three cases of lava specimens from Mauna Loa, in the Sandwich Islands, taken from the lava streams of tbe recent eruption. Copper ores, emhracing carbonates, snlpbates, silicates, tbe red oxide and native copper, are exhihited from the Planetmine of William’s Fork, Arizona; some of them assaying 50, and even 60 per cent. of copper. Tbe North Star gold mine of Grass Valley exhihits a eplendid lot of specimens, some of them of very large size, which are valuable as showing stratification in veins, and thereby disproving the possihility of volcanic ejection, in the filling up of those veins witb quartz, pyrites and gold. A hox of cleaned pyrites, washed in Hendy’s Concentrator, bas just heen added to the mining department. Copper and silver ores are also exhihited from the Morning Star gold and silver mine of Mogul, Alpine County. CLASS XII. Chemistry und Chemical Substances. Chemical mannfacturiug, though quitein its infancy on the Pacific coast, is already entered upou hy competing firms, which display considerable energy within the limited field opened to them hy the demands of the market. They are very poorly represented at the Exhibition, for some reason or other; possikhly becanse they may not care to have each other’s productions canvassed and compared. Crauc & Brigham exhibit crystallized sulphate of copper, or blue vitriol, of which hundreds of tons are used annually to preserve wheat from smut. It is made from . low grade copper ores. The works are at and then the other; the Wolverine, a kind , Hunter’s Point. of mill in which the clothing is made to pass between revolving rollers; The San Francisco Chemical Works, the . Falkenau & Hanks, exlibit some large crystals of sal soda—carbonate of soda—which is made of common salt from sulphurie acid, and suhsequent decomposition of the sulphate of soda so obtained hy means of sawdust and lime, cbanging the sulphate into carhonate. Nitric, sulpburie and muriatic acids, besides other chemicals, are made by this firm, but are not exhibited. The works are on Sixteenth street, between Folsom and Harrison. The Golden City Chemical Works are not represented, J. B. Parsons & Co. exhibit Bowman’s American washing compound; Boyd’s yeast powders are represented by numerous packaves; the “‘giant powder” proclaims its own qualities, hy the effects which were produced hy half an ounce of it upon an iron shell, and by its utterharmlessnessto a box, filled with it, which was thrown into the air. Tuck, Horstman & Co. exhibit crystals of sal soda; Charles Bernard exhibits, amongst other things, cream of tartar —hitartrate of potasb, heing the eediment which deposits itself in wine casks—and saleratus, or prepared pcearlash; Dr. Tolman ehows eome “California seidlitz powders,” which are made from materials expressly for the California trade; Eherhart & Lachman, wine dealers, have onexhihition a fine photograph of the Napa soda springs; Dounolly & Co. exhibit their premium yeast powders, composed chiefly of saleratus; also some saleratus, and cream of tartar. Salt is exhibited by numerous firms, and from localities both far and near. The Union Pacific Salt Company have some from Turk’s Island, and trom San Qnentin and Plummer’s salt works at Sau José Mission; also some Pembroke table salt, and pork packing ealt. B. F. Barton, of the Pioneer Salt Works. exhibits English salt, two carhonates of soda, aud cream of tartar. Holliday & Brenham exhibit Carmen Island salt, of which substance, as a curiosity, there is a crystallized cross, ete. Perfumery and toilet articles are exhibited in considerahle quantity and variety, with fine effect, by J. W. Angel, apothecary, CLASS XII. Jewelery, Silver nud Plated Ware, Ete. Braverman & Levy have two large cases full of the finest specimeus of gold and silver ware. Art has been called into reqnisition in the executiou of eome exquieitely heantifnl designs, in polished and rough silver. There are salvers, knives and forks, gohlets, drinking cups, pitchers, cases of spoous, hells, ete., exhibiting a great fertility of richness and luxury. ' Bronze aluminum, an alloy which can scarcely be distinguished from gold, consisting mainly of copper and aluminunn, is represented in a case of articles of jewelry from the sbop of J. Levy. The metal ie light and flexihle, hard as steel, and will not rust. Table articles, spoons, watches, match safes, ear-riogs, bridle huckles, spurs, ete., comprise the principal subjects of its application. Carl H. Hain exhibits an astronomies] clock, showing the time of a dozen of the leading cities of the glohe, hy means of an equal number of dials surrounding the main dial; also some very tasteful wall clocks, with black walnut finishing; and the Howard and Elgin watebeewith their works exposed to view; hesides miscellaneous jewelry, 2s pitchers, gohlets, spoons, napkin rings, and the like, of California manufacture, Vanderslice exhibits a fine array of solid silver ware of California manufacture, consisting of plates and other table articles, spoons, forks, ete. John Martell exhibits specimens of silver plating; and D. Josepb, of engraving on plate, including door-plates and hell-pulls, Price’s eilver-plated cutlery comes under the same bead. E.G. Dennison, of the San Francisco Plating Works, shows a variety of plated ware, which cannot be distinguished from the solid article. Oakley g& Rosekrans exhihit plated door-plates, hells, numhers, and other plated ware for houses and ships. The case of Haynes & Lawton contains some of the finest specimens of plated ware, which is made a epecialty of hy them, as agents for the Pacific Plate Works. The large clock on the front gallery: which gives time for the Exhibition, was manufactured hy H. Wenzel. Its works can be inspected through glass. An ingenious watch alarm by Theodore Hollander, hy which any ordinary watch may be made to give an alarm, can he seen in the Art Gallery. TI. Heiuze exhibits dials for watebes and clocks. Swords, shoulder-starps, epaulettes, and other military and uaval paraphernalia, principally ot gold or gold plated, are exhihited hy T. Rodgers Johnson, and hy Blake & Uo. = ——— ll

130 The Mining and Scientific Press. Our Lhdusirvial Latr. [From the Mechanics’ Fair Daily Press.] General Review of the Exhibition. CLASS IX. Glass, Pottery, and Clay Ware, Tbe Pacifie Glass Works, Bennett & Co., whose factory is at the corner of Iowa and Mariposa streets at the Potrero, make a fine exhibition of all the more useful articles which are demanded by the trade on this coast. Tbey are chiefly of the common hottle-green color, which is given to the glass hy an infinitesimal qnantity of the protoxide of iron, incidentally intermixed. Every variety of ordinarily useful hottlemay heseen, hesidesan assortment of willow-cased demijohus, carboys, etc., all of which may also be seen at Jobn Taylor & Co.’s, the agents, No. 514 Washington street. These are the only glass works in operation at the present time on tbe Pacific coast. The San Francisco Glass Works were. destroyed hy fire some time ago, notwithstanding which they are represented by a very fine display at the Vair, including everytbing that is made at ordinary glass factories, useful as well as ornamental and astouishing. Tbere are hottles of all sizes and colors, enps for ordinary and chemical uses, a speaking trumpet, rods, tuhes, canes, flag-poles, stoppers, vases, halls, bollow globes for lamps, carboys, ship-lights, ink hottles, vials, ete. ; in sbort all kinds of flint, German flint, and green and black glass ware. The chimney of the late works may be seen standing on Townsend street, between Tbird and Fourth. We are pleased to learn that these works are to he rehuilt speedily. The proprietor, Carlton Newman, has heen struggling energetically for the estahlishment of a creditahle industry, and is deserving of encouragement and support. Glass-cutting on plain, colored and ground glass, is represented, hy Thomas O'Neill, and by John Mallon, who execute all kinds of lettering and ornamental work, desirahle for signs, doors, sky-lights, church windows, domes, etc. Mirrors of the ricbest quality and appearance may be seen in the art gallery, placed there by Whittman, Fuller & Co., at the southern end, with very tasteful plain frames, and by Jones & Wooll at the northern end, with gilded frames. Robert Mil:s also has some heautiful mirrors to the left of the fountain, aud some artistic colored glass paintings, for church windows and the like, which may be ohserved in the windows above the gallery at the western end of the Pavilion, viz: “Christ on the Cross,” a horse, a little shepberdess, a dove, and_ some ornamental designs. Sign-painting on glass is represented by N. V. Gallagher, J. W. Cherry and Sweett & Gadsby. Fine imported porcelain and glassware, statuary, etc, are exhibited by R. A. Swain, and hy Haynes & Lawton, ‘The heautiful glass cases of these firms, and the contents thereof, display more of the luxurious tastefulness of opulence than anything else in the exhihition. The former show imported crockery, glassware, white and decorated China, looking glasses, gohlets, statuary, etc.; the latter make tahle articles and silver plate more of a specialty. One of the most interesting exhibitions in any department, is that of Issac Lohree . : & Co., representing the Golden State Pottery Works at Antioch, Contra Costa County, the trade depot of which is at No. 516 Commercialstreet. It comprisesa very creditahle showing of almost all varieties of stoneware, earthenware, Rockingham ware, flower-pots, water and drain pipes, yellow ware, stovelinings, fire-brick, fire tilo,retorts, tanke, tuhs, etc., entirely of home manufacture, and offered to the trade at 25 per cent. cheaper tban the imported ware. We noticed also churns, water-filters, drain pipes, beer hottles, hacks and cheeke for mantels mnade of stone ware; also pitchers and spittoons made of Rockingham ware. The material is procured mainly in the vicinity of the works in Contra Costa Couuty. Many of the articles are ornamented with artistic bas reliefs of figures aud tlowers. The pottery works at the Mission have been discoutinued, so that this is now the only exteusive enterprise of the kind in operation in the State. Water and drain pipes made of asphaltum cement, are exhihited hy Egan Brothers, and Wise & Rohinson. ‘The same material as applied toroofing and paving, is exhibited in models. The Benicia Cement Works bave a large number of kegs of their commercial article, together with specimens of the cement after it has hecome fixed. The capacity of the works is 300 barrels a day. Brick is not represented at all. An opportunity to test and compare the productions of different localities, wbicb are competing in the supply of the San Francisco market, ought to have been afforded to the numerous lot-bolders and expectant builders who visit the Fair, and the result could not bave heen otherwise than beneficial to the manufactnrers of tbe best article. Allied natural productions, which belong to different classes, are the ‘‘electro silicon,” or “magic brilliant,” intended for family polishing, = kind of fine chalk, which is exhihited amongst the articles of table ware without name or locality of production; and the mineral or rock paints of O. A. Olmstead, from Olmstead’s Mills, in Sonoma county, of which there are twelve varieties of color. CLASS X, Wood and Wood Work. Owing to increased pressure both for time and space we shall he restricted to a ‘mere mention” of many important articles, which may be taken up, however, and treated separately hereafter. Elam & Howes exbihit huckets, tubs, hoxes, kegs, wash-boards, refrigerators, hutter kits, churne, washing machines, strawherry baskets, hroom and pail bandles, potato mashers, towel and hread rollers, ete ; all of their own manufacture. Geo. L. Wenzel exhihits specimens of California oak from Clear Lake, and some coopering of that material, which bas the advantage of never heing worm eaten. Oak is very plentifnl in the section named, the trees growing from 38 to 614 feet in diameter, and 40 to 80 feet in hight. Brusb and broom manufactures are exhihited hy the San Francisco Brnsh Factory, G. M. Zan, and by the California Brusb Factory, each varying a little from the other in their specialty. Edward Galpen also exhihits wooden ware, similar to Elam & Howes’. Shingles are turned out every evening hy F, A. Huntington’s shingle making machine, at the rate, when worked up to time, of 3,000 an hour. This machine was built hy Geo. T. Pracy, at 109 Mission street, and deserves further notice at a future time, Splendid specimens of California laurel may be seen in the Music Room, representing the estahlishment of John D. Boyd, equal in effect to the finest productions of tropical forests. Specimens of graining, imitation mosaic and inlaid work, are shown by Boyd, Geo. A. Brush, C. Roemer and Wm. O”’Day. Roemer shows a heautiful pillar made out of different ornamental woods. J. Rolland sbows samples of inlaid floors. A hand-organ of fine inlaid work, made in Europe, is lahelled ‘‘In commemoration of the Hayes & Higgius election het, Sept. 11, 1867.” But the most elahorate specimen of inlaid work is the Japanese cahinet in the music room, without lahel. The Pacific Barrel Company, Fliut, Peahody & Co., exhibit machine-made staves and-harrels of pine wood grown in California. Their factory is at the Potrero. Fulda & Son make‘ a fine exhibition in wine cooperage, They have three very large tuns, two of them for R, Snyder, of Sonoma county. Anoval one, made to fit into arecess in Mr. Snyder’s cellar, contains 890 gallons, and cost 18 cents per gallon, or $160 20. Sturger’s improved weather-proof window frame bas the sash grooved and running on a raised strip in the frame. The wind and weather proof results aimed at are effectively attained in a simple manner. Lasts are exhihited hy Shephard & Carroll, and Peter H. Fluck, of the natural form of the foot. A stave-jointer and gauging machine are exhibited hy J. W. Alesworth, of Santa Cruz, which have already becn noticed. Washing machines are on hand in numbers. There is the Dixie, a simple lever arrangement which rubs and rolls; the Rasmussen, similar to the Dixie in principle, hut double and more complicated; the Pioneer Washer, an oscillating rotary machine, being simply » contrivance by which four tusks are made to reach down into the tuh, aud to rotate the clothing first oue way . Patterson Combined Washer and Wringer, exhihited by Miss A. W. McClellan, in which the clothing lies on a ribbed bottom and is rolled over by a large rihhed roller weighing sixty pounds; and the Vail machine, for blankets and similar beary articles, which looks like, and is nothing but a asmall wooden stamp mill, in which the article is pounded in soap suds until it is clean. School furniture of a substantial cbaracter, witb iron under-pinning, is exhibited from Warren Holt’s Pacifie School Institnte.

In general fnrnitnre, Johnson & Best show a splendid black walnut hook-case, and other office furniture; Bryant & Stra. han, a magnificent side-hoard, with carved birds of very artisticexecution; Wigmore & Palmer, & variety of scbool-room, office and library furuiture, of very superior execution, amongst which tbe Pompeiian Secretary, inimitation of designs from the huried city, is especially worthy of examination; N. P. Cole, a variety of California rosewood and laurel, and some black walnut pieces; Goodwin & Co., fine rosewood furniture and chairs; Huntington & Co., bedding with rubher springs. Hat and wig hlocks are exhibited by Gifford & Linsley. Outside there is a gigantic pine stern knee from Stillighomish Slough, W. T., cut for the CaliforniaSteam Navigation Co., which is 17 feet long, and bas a throat of 4 feet 6 inches; a pine log, sawed at Port Ludlow, W. T., 28 by 32 inches in dimensions, 48 feet long, and containing 3,580 feet of lumber, having heen cut for the San Marcial Silver Mining Company; aud a log of California laurel, cut hy L E. Thayer, 2% feet square and 50 feet long. Snow & Roos exhihit picture frames; G. A. British shows walnut doors with oak casing; Feldman & Co., and Thurnaur & Zinn, willow ware; and P. Gibot, spiral stairs. CLASS XI. Minerals, Kustel’s collection is the leading feature of the exhibition in this department. It is a very complete methodical collection, comprising crystallized and characteristic specimens of all the commonly found species, and especially of the leading gold, silver, copper, lead and iron ores, It is just such a collection as everyhody must have access to that desires to hecome familiarized in any degree with minerology. The lahor aud careful attention of years is usually necessary for the collection of a cabinet of this character and quality of specimens. More showy cahincts can he seeu in any mining camp; but the difference is very easily discerned hy all who have learued to distinguish pyrites from gold, or zinc hlende from the sulpburet of silver. Specimens of mcerschaum and amber, in their raw state, may he seen in the showease of Charles Kohlman, pipe manufacturer. There are three cases of lava specimens from Mauna Loa, in the Sandwich Islands, taken from the lava streams of tbe recent eruption. Copper ores, emhracing carbonates, snlpbates, silicates, tbe red oxide and native copper, are exhihited from the Planetmine of William’s Fork, Arizona; some of them assaying 50, and even 60 per cent. of copper. Tbe North Star gold mine of Grass Valley exhihits a eplendid lot of specimens, some of them of very large size, which are valuable as showing stratification in veins, and thereby disproving the possihility of volcanic ejection, in the filling up of those veins witb quartz, pyrites and gold. A hox of cleaned pyrites, washed in Hendy’s Concentrator, bas just heen added to the mining department. Copper and silver ores are also exhihited from the Morning Star gold and silver mine of Mogul, Alpine County. CLASS XII. Chemistry und Chemical Substances. Chemical mannfacturiug, though quitein its infancy on the Pacific coast, is already entered upou hy competing firms, which display considerable energy within the limited field opened to them hy the demands of the market. They are very poorly represented at the Exhibition, for some reason or other; possikhly becanse they may not care to have each other’s productions canvassed and compared. Crauc & Brigham exhibit crystallized sulphate of copper, or blue vitriol, of which hundreds of tons are used annually to preserve wheat from smut. It is made from . low grade copper ores. The works are at and then the other; the Wolverine, a kind , Hunter’s Point. of mill in which the clothing is made to pass between revolving rollers; The San Francisco Chemical Works, the . Falkenau & Hanks, exlibit some large crystals of sal soda—carbonate of soda—which is made of common salt from sulphurie acid, and suhsequent decomposition of the sulphate of soda so obtained hy means of sawdust and lime, cbanging the sulphate into carhonate. Nitric, sulpburie and muriatic acids, besides other chemicals, are made by this firm, but are not exhibited. The works are on Sixteenth street, between Folsom and Harrison. The Golden City Chemical Works are not represented, J. B. Parsons & Co. exhibit Bowman’s American washing compound; Boyd’s yeast powders are represented by numerous packaves; the “‘giant powder” proclaims its own qualities, hy the effects which were produced hy half an ounce of it upon an iron shell, and by its utterharmlessnessto a box, filled with it, which was thrown into the air. Tuck, Horstman & Co. exhibit crystals of sal soda; Charles Bernard exhibits, amongst other things, cream of tartar —hitartrate of potasb, heing the eediment which deposits itself in wine casks—and saleratus, or prepared pcearlash; Dr. Tolman ehows eome “California seidlitz powders,” which are made from materials expressly for the California trade; Eherhart & Lachman, wine dealers, have onexhihition a fine photograph of the Napa soda springs; Dounolly & Co. exhibit their premium yeast powders, composed chiefly of saleratus; also some saleratus, and cream of tartar. Salt is exhibited by numerous firms, and from localities both far and near. The Union Pacific Salt Company have some from Turk’s Island, and trom San Qnentin and Plummer’s salt works at Sau José Mission; also some Pembroke table salt, and pork packing ealt. B. F. Barton, of the Pioneer Salt Works. exhibits English salt, two carhonates of soda, aud cream of tartar. Holliday & Brenham exhibit Carmen Island salt, of which substance, as a curiosity, there is a crystallized cross, ete. Perfumery and toilet articles are exhibited in considerahle quantity and variety, with fine effect, by J. W. Angel, apothecary, CLASS XII. Jewelery, Silver nud Plated Ware, Ete. Braverman & Levy have two large cases full of the finest specimeus of gold and silver ware. Art has been called into reqnisition in the executiou of eome exquieitely heantifnl designs, in polished and rough silver. There are salvers, knives and forks, gohlets, drinking cups, pitchers, cases of spoous, hells, ete., exhibiting a great fertility of richness and luxury. ' Bronze aluminum, an alloy which can scarcely be distinguished from gold, consisting mainly of copper and aluminunn, is represented in a case of articles of jewelry from the sbop of J. Levy. The metal ie light and flexihle, hard as steel, and will not rust. Table articles, spoons, watches, match safes, ear-riogs, bridle huckles, spurs, ete., comprise the principal subjects of its application. Carl H. Hain exhibits an astronomies] clock, showing the time of a dozen of the leading cities of the glohe, hy means of an equal number of dials surrounding the main dial; also some very tasteful wall clocks, with black walnut finishing; and the Howard and Elgin watebeewith their works exposed to view; hesides miscellaneous jewelry, 2s pitchers, gohlets, spoons, napkin rings, and the like, of California manufacture, Vanderslice exhibits a fine array of solid silver ware of California manufacture, consisting of plates and other table articles, spoons, forks, ete. John Martell exhibits specimens of silver plating; and D. Josepb, of engraving on plate, including door-plates and hell-pulls, Price’s eilver-plated cutlery comes under the same bead. E.G. Dennison, of the San Francisco Plating Works, shows a variety of plated ware, which cannot be distinguished from the solid article. Oakley g& Rosekrans exhihit plated door-plates, hells, numhers, and other plated ware for houses and ships. The case of Haynes & Lawton contains some of the finest specimens of plated ware, which is made a epecialty of hy them, as agents for the Pacific Plate Works. The large clock on the front gallery: which gives time for the Exhibition, was manufactured hy H. Wenzel. Its works can be inspected through glass. An ingenious watch alarm by Theodore Hollander, hy which any ordinary watch may be made to give an alarm, can he seen in the Art Gallery. TI. Heiuze exhibits dials for watebes and clocks. Swords, shoulder-starps, epaulettes, and other military and uaval paraphernalia, principally ot gold or gold plated, are exhihited hy T. Rodgers Johnson, and hy Blake & Uo. = ——— ll