Volume 23 (1871) (426 pages)

296 SCIENTIFIC PRESS. [November 11, 1877. eientifie Dress, W. B. EWER. occcc-ecescceescocccceeces SEnIon EpirTox. DEWEY & Co., Publishers. GEO, 4. STRONG, A, T. DEWEY, : JNO. L. BOONE. Ww. 2B. EWEE, Office, No. 338 Montgomery St., S. E. Corner of California St., diagonally opposite Wells, Fargo & Co.’s. NEW YORK OFFISE: 37 Park Row, Room 25, W. E. Panremes, Editorial and Business Correspondent.SUBSCRIPTION AND ADVERTISING RATES. ADVERTISING Rates.—l week. 1 month. 3 months. 1 year. Eeee-20 $5.00 $3.00 7.50 20.00 ses 6.00 14.00 36.00 Largs sdvertissments at favorabla ratse. Special or reading noti le; in extraordinary type or in particular parts of ths paper, inserted at special rates. Sussorrerions payable in advyance—For ons year, $4; six months, $2.50; thres montbs, $1.25. Clubs of ten names or more, $3 each per annum. $5, in advance, will pay for 1% year. Remittances by registered letters or P, O. orders at our risk. San Francisco: Saturday Morning, Noy. 11, 1871. Gold and Legal Tender Rates. San Francisco, Wednesday, Nov. 8, 1871.—Legal Tenders buying 88%; selling, 8934. Gold in New York to-day, 112.4% ——— Table of Contents. An Explosion in ths Sun—Ill.: Academy of BelOnCesee We sae cs cect + cals e cae s oer so swart Mercuanican Procress. — Phosphor-Bronze; Finishing Steel: Seasoning Timber by Steam; Xylonite; Blasting Timber with Dynamite; Surface Blow for Steam Boilers...290 Screntiric Proeress.—Ice Fleas; Freezing of Water Under Pressure; The Barometer and the Sea Level, ete 290 Action of Oxychloride of Copper on Argentite; On the Loss of Quicksilver; Battle Mt., Nevada; Effects of Climate on Fruits; Mines in Inyo County; Summer in Our Inland ValHES ac OE i: . 291 Minine Summary.—Stock & Exchange Board; Market Report...seseseseceees 292-93 On the Assay of Gold; Barthel’s Improved Gate—Ill.; Mechanical Progress 294 Uservn Inrormation.—Facts about Ropes; Painless Killing; Adulteration of Lard. Goop Heatta.—Chewing Gum a Bad Habit; Children’s Heads; Things to Remember.. 295 Tides and Currents of San Francisco Harbor— Singular Facts; Mining Discoveries; A New Work on Metallurgy; Revival of the Mining Interests 296 The Philosophy of Giffard’s Injector; Chency’s Horse-power; Patents and Inventions.297 Domestic Economy, Domestic Recerprs. MzcHANIcaL Hints. Lire Tsovcsrts The Watsr Question Notices to Correspondents. We have received a box of mineral specimens and fossils from Mr. A. J. Brown, which we have not yet had time to examine. Recent Mining Discoveries. Caurrorni1a.—aA ledge of silver-bearing qnartz was discovered recently,fin the field of E. M. Day, within the limits of the town of Lower Lake, in Lake county. The recently reported coal discoveries in Capay Valley have heen confirmed. Coal of a good quality has been fonnd in seyeral different localities. Utan.—Rich gold-hearing quartz has been fonnd in Bingham Canon. Assays of the ore have reached $2,000 perton. Considerahle excitement in regard to these disooveries prevails in Salt Lake City, and a great number of people have gone out to the mines. Arizona.—A mining excitement has broken ont in Prescott, over the discovery of silver ledges in Groom’s Basin, and on the divide between the basin and Upper Lynx creek. The mines are situated in a timhered district, southeast of Prescott. The Bismarck, Cornicopia and Homestake are among the richest ledges discovered. Some of the ore, which yielded $1.25 per pound was taken into Prescott, and in consequence, a rush from that place commenced at once, and a number of claims were taken up the same day. Many employés from sawmilis and stores joined the rush forthe mines. Fine specimens of horn silver have been found. Lower Catrrornia.—Ledges of goldhearing quartz have just been discovered on the frontiers of Lower Califoruia, and a party of 18 Mexicans from the Almaden Quicksilver mines left this city a few days ago, with their families, to work upon one of the mines. g. placer mines herstofore abandoned, on General Revival of Mining Interests. The latest reports from the mining districts throughout the Pacifio States and Territories, hetokena general revivalin this hranch of industry. Thisnew and increasing interest in mining is caused by recent rich developments, which have been made; improved processes for reducing ore; and increased facilities of transportation to and from hitherto remote mining regions. The extensive and valuable discoveries in the south and southwestern portions of Utsh, and the eastern and southern districts of Nevada, have inspired a confidence and given an impetus to mining enterprises, such as has not been witnessed for several years past. In Arizona, within the last few weeks, both gold and silver mines of extraordinary richness and extent have beeu found near Prescott, resulting in great excitement throughout the Territory. In Colorado, important developments have been made, and the yield of the mines is constantly and steadily increasing. Rich and extensive deposits of ore have also been struck in the Comstock Ledge recently. In California, several new enterprises have been inaugurated, hy which gravel claims and account of watsr, will be drained and worked to advantage. The stuhborn ores of the Humboldt region, Eastern Nevada, and Arizona, which formerly rssisted treatmeut, are easily reduced by new processes of roasting andsmelting, and whole districts which had heen neglected for years, are filled with miners, taking up old claims and locating new ones. The completion of the trans-contine ntal railroad and the construction of branch roads have penetrated and continue to penetrate regions, rich in mineral wealth, . but hitherto so remote from all means of transportation, that there were no facilities for getting supplies or machinery, or shipping the ores. These heretofore inaccessible districts have become instinct with new life; provisions are ohtained cheaply, and the richest ores can he despatched to reducing works, both east and west, and immediate returns received. The miners, who were in former times dependent upon capitalists entirely to develop their property and pnt up machinery, can now with the improved means of transportation, rely upon their own resources, and at a comparatively small expense send their ores to market. The completion of the Southern Pacific Railroad and the lines extending southward from Colorado and Utah will open up a region rich in mineral wealth. The investment of European capital in productive mines is giving a stimulus to further enterprises, and assisting greatly in developing the resources of the country. ee THE first number of Crofutt’s Western World is before us, published by Geo. A. Crofutt, proprietor of Crofutts trans-continental guide. It is devoted to the railroad and kindred interests of the great west; and to information for tourists, miners, and settlers this side of the Mississippi. The] paper is a large one, bearing on its first page an engraving of unusual size entitled Progress.” We are pleased to see that Mr. Crofutt is still looking out for the interests of the Western States. Mr. O. W. Easton, recently from Salt Lake, will deliver a lecture at Mercantile Library Hall, on next Monday evening. The subject is one of interest to all at the present time—Six months in Utah, its People, Institutions and,Mines; Polygamy and its remedy. Mr. Easton merits a good audience, and we trust that he will have one. -) oe GrapineG on the Northern Pacific Railroad is now completed as far as the Red peter: Tides and Currents of San Francisco Harbor.—Singular Facts. It is well known that during the late civil war our friends at the South resorted largely to the use of torpedoes for the defense of their harbors, and by them were enabled to hold some of them, Charleston iu particular, against the repeated attacks of our naval forces, No less than nineteen armed vessels and transports were totally destroyed during the rebellion; many others were injured. Further, it is known that one of the first acts of France during the late war with Prussia was to fit out a formidable naval expedition accompanied by a land force, prohably one of the most formidable naval expeditions ever set afloat, for the purpose of attacking the sea forts of Northern Prussia, and thus creating a diversion in favor the proposed iuvasion of the South, Following this there were no results affecting the prosperity of her arms; for, while the French fleet was getting ready, the Prussian harbors were being studded with torpedoes, The French fleet arrived at its destination, reconnoitered, hut no assault was made, nor was there one attempted. Our Government profiting by these lessons, has instituted an examination of all our harhors, both on the Atlantic and the Pacific Coasts, in’ order to ascertain to what extent they may be defended by similar means in the future. On inquiry of the proper authorities, we learn that Gen. Alexander, the Senior Engineer of the Army on this Coast, received orders, some months since, to have a series of Current Observations made in this harbor with the view of devising a system of torpedoes and floating obstructions as auxiliary means of defense in case of war with a maritime power. He detailed Lieut. Handbury, U. 8. Engineer Corps, on this duty, and the result of his lahors is the development of some very remarkable facts, not hitherto Known, concerning the Tidal Currents of this Bay, especially those between Fort Point and Lime Point. We are not enabled to give in detail the results of these observations, but will lay before our readers some of the most prominent facts, trusting that they will be inesting to many. The range of the tide at Fort Point from extreme high water to extreme low, springtides, is ahout eight feet. Theduration of an ehb tide of this kind is about seven hours. From calculations based upon these data, the velocities ohtained from ohservations, the area of the cross section at the Golden Gate, and the area covered by the tidal waters that pass this point, it was found that approximately 110,000,000,000, cuhic feet of water run out past Fort Point in seven hours. : This is equal to nearly oue cubic mile of water, and is more than the amount which passes New Orleans in twenty-four hours during the highest known flood of the Mississippi River. " * Supposing this water to have a mean velocity during this time of, say three miles per hour, the curious of our readers may find it interesting to determine the horse-power that it is equal to, and the number of steam engines that it could replace, provided its immense force could be utilized. At the Golden Gate, observations were taken on the cnrrents at the surface and at various depths down as low as three hundred feet below the surface. Their velocities and directious were very remarkable. Themaximum velocity ohtained was, for the surface current, 6.6 miles an hour, while that at the depth of 300 feet was running, at the same time, 10.5 miles an hour. The currents at depths intermediate do not vary according to any known law between these rates, but are continually . changing their relation to each othsr, that is, for a considerahle length of time the lower will he the faster, then they will change and strata intermediate between the surface and the lower, willhave the greatest velocity. These changes in the velocitiss of the undercurrents seldom seem to affect, that of thesurface, This is always slower than any of the other currents, except perhaps the one in immediate contact with the bottom. The directions of the currents are not always in the same Vertical plane, hut frequeutly they spread out like a fan, making various angles with each other. Near ths time of a change of tide from ehb to flood. or from flood to ebb, it is not an unfrs. quent occurrence to fiud the surfacs rnpning in one direction, and the lower current ina direction exactly opposite, with the currents at intermediate depths running in directions hetween. The time of slack water is not, as is gsnerally supposed, coincident with ths tims that the tide reaches its highest or lowsst phase, hut it occurs sometime later. Thig difference at the Golden Gate is an hour and a half or two hours. That is, after the tide has reached its highest point, hag changed, and commenced to fall, the water continues to run in for an hour anda half, and when it has reached its lowest point, changed and commenced to rise, the water in like manner continues to run out. Besides the observations taken between Fort Point and Lime Point there were many others taken at various places throughout the Bay and on the Bar, all of which hays developed facts which are very curious and exceedingly interesting; not only on account of their connection with subjects of a purely scientific and military nature, hut from their relation to the commercial wants of our harbor. How far these current observations are regarded as favorable for the purpose for which they were instituted—that of dsfense—we did not learn. We imagine, however, that it would tax the ingenuity of our oldsst pilots to anchor a system of torpedoes in the strong current of ths Golden Gate, so as to have them in the right place at the right time. Douhtless thsy would have to be placed inside ths entrace of the harhor in more quiet waters, These are many questions besides the one of defense, hut connected with our commercial prosperity, that render it exceedingly desirable that we should havea complste and reliahle current chart of onr systsm of inland waters, showing ths directions and velocities of the currents throughout the Bay, at all the different stages of the tidss, We hope tosee sneh a chart at no distant day. J. 8. Parumprs’s New Boor on Mmnne, Erc,—This work is now printed and will be ready for distrihution from the ScrnTrio Press office, Nov. 18th. Our English cotemporary, the London fining Journal, the editor of which has perused some of the advance sheets, writes the following: Mining Literarurr.—A volume which promises to be of great value to practical miners, is at presant preparing for puhlication, and will be ready for issue in the course of a few weeks, by Messrs, Dewey and Co., of San Francisco, uuder the title of the Explorers’, Miners’, and Metallurgists’ Companion, hy Mr. J. S. Phillips, who is well known to the readers of the Mining Journal as having had considerahle experience in mining in Cornwall, and whose name in America is connected with the ‘‘ Wee Pet” assaying machine, which, although capable of being packed for travelling in a 5 or 6-inch hox, contains all the apparatus necessary for roasting, fusion, ignitiou, and all ths general purposes of the analyst and assayer. Mr. Phillips’s volume is divided into five sections. That treating of Geology and Mineralogy descrihes the formation of the earth, mineral veins, &c.;the supposed actions ard re-actions that have heen, and are continually, taking place; the peculiar characteristics of true fissure veins; and the more generally recognized premonitory indications, in the shallow portion of veins, for prohable increase of mineral in depth. The second section teaches how to explore, where to explore, the peculiar kinds of the primitive and secondary rocks that concern the miner, as being most con° genial for rich veins, &c. The remaining three sections are devoted to assaying and discriminations, mining and engineering, and metallurgy respectively. The volume will fill some 600 pages, more than three-fourths.of which are already printed. Messrs. Triihner and Co., of Paternoster: Row, wiJl supply the book in England, where it will, no doubt, find many readers. j

296 SCIENTIFIC PRESS. [November 11, 1877. eientifie Dress, W. B. EWER. occcc-ecescceescocccceeces SEnIon EpirTox. DEWEY & Co., Publishers. GEO, 4. STRONG, A, T. DEWEY, : JNO. L. BOONE. Ww. 2B. EWEE, Office, No. 338 Montgomery St., S. E. Corner of California St., diagonally opposite Wells, Fargo & Co.’s. NEW YORK OFFISE: 37 Park Row, Room 25, W. E. Panremes, Editorial and Business Correspondent.SUBSCRIPTION AND ADVERTISING RATES. ADVERTISING Rates.—l week. 1 month. 3 months. 1 year. Eeee-20 $5.00 $3.00 7.50 20.00 ses 6.00 14.00 36.00 Largs sdvertissments at favorabla ratse. Special or reading noti le; in extraordinary type or in particular parts of ths paper, inserted at special rates. Sussorrerions payable in advyance—For ons year, $4; six months, $2.50; thres montbs, $1.25. Clubs of ten names or more, $3 each per annum. $5, in advance, will pay for 1% year. Remittances by registered letters or P, O. orders at our risk. San Francisco: Saturday Morning, Noy. 11, 1871. Gold and Legal Tender Rates. San Francisco, Wednesday, Nov. 8, 1871.—Legal Tenders buying 88%; selling, 8934. Gold in New York to-day, 112.4% ——— Table of Contents. An Explosion in ths Sun—Ill.: Academy of BelOnCesee We sae cs cect + cals e cae s oer so swart Mercuanican Procress. — Phosphor-Bronze; Finishing Steel: Seasoning Timber by Steam; Xylonite; Blasting Timber with Dynamite; Surface Blow for Steam Boilers.....290 Screntiric Proeress.—Ice Fleas; Freezing of Water Under Pressure; The Barometer and the Sea Level, ete 290 Action of Oxychloride of Copper on Argentite; On the Loss of Quicksilver; Battle Mt., Nevada; Effects of Climate on Fruits; Mines in Inyo County; Summer in Our Inland ValHES ac OE i: . 291 Minine Summary.—Stock & Exchange Board; Market Report.....seseseseceees 292-93 On the Assay of Gold; Barthel’s Improved Gate—Ill.; Mechanical Progress 294 Uservn Inrormation.—Facts about Ropes; Painless Killing; Adulteration of Lard. Goop Heatta.—Chewing Gum a Bad Habit; Children’s Heads; Things to Remember... 295 Tides and Currents of San Francisco Harbor— Singular Facts; Mining Discoveries; A New Work on Metallurgy; Revival of the Mining Interests 296 The Philosophy of Giffard’s Injector; Chency’s Horse-power; Patents and Inventions..297 Domestic Economy, Domestic Recerprs. MzcHANIcaL Hints. Lire Tsovcsrts The Watsr Question Notices to Correspondents. We have received a box of mineral specimens and fossils from Mr. A. J. Brown, which we have not yet had time to examine. Recent Mining Discoveries. Caurrorni1a.—aA ledge of silver-bearing qnartz was discovered recently,fin the field of E. M. Day, within the limits of the town of Lower Lake, in Lake county. The recently reported coal discoveries in Capay Valley have heen confirmed. Coal of a good quality has been fonnd in seyeral different localities. Utan.—Rich gold-hearing quartz has been fonnd in Bingham Canon. Assays of the ore have reached $2,000 perton. Considerahle excitement in regard to these disooveries prevails in Salt Lake City, and a great number of people have gone out to the mines. Arizona.—A mining excitement has broken ont in Prescott, over the discovery of silver ledges in Groom’s Basin, and on the divide between the basin and Upper Lynx creek. The mines are situated in a timhered district, southeast of Prescott. The Bismarck, Cornicopia and Homestake are among the richest ledges discovered. Some of the ore, which yielded $1.25 per pound was taken into Prescott, and in consequence, a rush from that place commenced at once, and a number of claims were taken up the same day. Many employés from sawmilis and stores joined the rush forthe mines. Fine specimens of horn silver have been found. Lower Catrrornia.—Ledges of goldhearing quartz have just been discovered on the frontiers of Lower Califoruia, and a party of 18 Mexicans from the Almaden Quicksilver mines left this city a few days ago, with their families, to work upon one of the mines. g. placer mines herstofore abandoned, on General Revival of Mining Interests. The latest reports from the mining districts throughout the Pacifio States and Territories, hetokena general revivalin this hranch of industry. Thisnew and increasing interest in mining is caused by recent rich developments, which have been made; improved processes for reducing ore; and increased facilities of transportation to and from hitherto remote mining regions. The extensive and valuable discoveries in the south and southwestern portions of Utsh, and the eastern and southern districts of Nevada, have inspired a confidence and given an impetus to mining enterprises, such as has not been witnessed for several years past. In Arizona, within the last few weeks, both gold and silver mines of extraordinary richness and extent have beeu found near Prescott, resulting in great excitement throughout the Territory. In Colorado, important developments have been made, and the yield of the mines is constantly and steadily increasing. Rich and extensive deposits of ore have also been struck in the Comstock Ledge recently. In California, several new enterprises have been inaugurated, hy which gravel claims and account of watsr, will be drained and worked to advantage. The stuhborn ores of the Humboldt region, Eastern Nevada, and Arizona, which formerly rssisted treatmeut, are easily reduced by new processes of roasting andsmelting, and whole districts which had heen neglected for years, are filled with miners, taking up old claims and locating new ones. The completion of the trans-contine ntal railroad and the construction of branch roads have penetrated and continue to penetrate regions, rich in mineral wealth, . but hitherto so remote from all means of transportation, that there were no facilities for getting supplies or machinery, or shipping the ores. These heretofore inaccessible districts have become instinct with new life; provisions are ohtained cheaply, and the richest ores can he despatched to reducing works, both east and west, and immediate returns received. The miners, who were in former times dependent upon capitalists entirely to develop their property and pnt up machinery, can now with the improved means of transportation, rely upon their own resources, and at a comparatively small expense send their ores to market. The completion of the Southern Pacific Railroad and the lines extending southward from Colorado and Utah will open up a region rich in mineral wealth. The investment of European capital in productive mines is giving a stimulus to further enterprises, and assisting greatly in developing the resources of the country. ee THE first number of Crofutt’s Western World is before us, published by Geo. A. Crofutt, proprietor of Crofutts trans-continental guide. It is devoted to the railroad and kindred interests of the great west; and to information for tourists, miners, and settlers this side of the Mississippi. The] paper is a large one, bearing on its first page an engraving of unusual size entitled Progress.” We are pleased to see that Mr. Crofutt is still looking out for the interests of the Western States. Mr. O. W. Easton, recently from Salt Lake, will deliver a lecture at Mercantile Library Hall, on next Monday evening. The subject is one of interest to all at the present time—Six months in Utah, its People, Institutions and,Mines; Polygamy and its remedy. Mr. Easton merits a good audience, and we trust that he will have one. -) oe GrapineG on the Northern Pacific Railroad is now completed as far as the Red peter: Tides and Currents of San Francisco Harbor.—Singular Facts. It is well known that during the late civil war our friends at the South resorted largely to the use of torpedoes for the defense of their harbors, and by them were enabled to hold some of them, Charleston iu particular, against the repeated attacks

of our naval forces, No less than nineteen armed vessels and transports were totally destroyed during the rebellion; many others were injured. Further, it is known that one of the first acts of France during the late war with Prussia was to fit out a formidable naval expedition accompanied by a land force, prohably one of the most formidable naval expeditions ever set afloat, for the purpose of attacking the sea forts of Northern Prussia, and thus creating a diversion in favor the proposed iuvasion of the South, Following this there were no results affecting the prosperity of her arms; for, while the French fleet was getting ready, the Prussian harbors were being studded with torpedoes, The French fleet arrived at its destination, reconnoitered, hut no assault was made, nor was there one attempted. Our Government profiting by these lessons, has instituted an examination of all our harhors, both on the Atlantic and the Pacific Coasts, in’ order to ascertain to what extent they may be defended by similar means in the future. On inquiry of the proper authorities, we learn that Gen. Alexander, the Senior Engineer of the Army on this Coast, received orders, some months since, to have a series of Current Observations made in this harbor with the view of devising a system of torpedoes and floating obstructions as auxiliary means of defense in case of war with a maritime power. He detailed Lieut. Handbury, U. 8. Engineer Corps, on this duty, and the result of his lahors is the development of some very remarkable facts, not hitherto Known, concerning the Tidal Currents of this Bay, especially those between Fort Point and Lime Point. We are not enabled to give in detail the results of these observations, but will lay before our readers some of the most prominent facts, trusting that they will be inesting to many. The range of the tide at Fort Point from extreme high water to extreme low, springtides, is ahout eight feet. Theduration of an ehb tide of this kind is about seven hours. From calculations based upon these data, the velocities ohtained from ohservations, the area of the cross section at the Golden Gate, and the area covered by the tidal waters that pass this point, it was found that approximately 110,000,000,000, cuhic feet of water run out past Fort Point in seven hours. : This is equal to nearly oue cubic mile of water, and is more than the amount which passes New Orleans in twenty-four hours during the highest known flood of the Mississippi River. " * Supposing this water to have a mean velocity during this time of, say three miles per hour, the curious of our readers may find it interesting to determine the horse-power that it is equal to, and the number of steam engines that it could replace, provided its immense force could be utilized. At the Golden Gate, observations were taken on the cnrrents at the surface and at various depths down as low as three hundred feet below the surface. Their velocities and directious were very remarkable. Themaximum velocity ohtained was, for the surface current, 6.6 miles an hour, while that at the depth of 300 feet was running, at the same time, 10.5 miles an hour. The currents at depths intermediate do not vary according to any known law between these rates, but are continually . changing their relation to each othsr, that is, for a considerahle length of time the lower will he the faster, then they will change and strata intermediate between the surface and the lower, willhave the greatest velocity. These changes in the velocitiss of the undercurrents seldom seem to affect, that of thesurface, This is always slower than any of the other currents, except perhaps the one in immediate contact with the bottom. The directions of the currents are not always in the same Vertical plane, hut frequeutly they spread out like a fan, making various angles with each other. Near ths time of a change of tide from ehb to flood. or from flood to ebb, it is not an unfrs. quent occurrence to fiud the surfacs rnpning in one direction, and the lower current ina direction exactly opposite, with the currents at intermediate depths running in directions hetween. The time of slack water is not, as is gsnerally supposed, coincident with ths tims that the tide reaches its highest or lowsst phase, hut it occurs sometime later. Thig difference at the Golden Gate is an hour and a half or two hours. That is, after the tide has reached its highest point, hag changed, and commenced to fall, the water continues to run in for an hour anda half, and when it has reached its lowest point, changed and commenced to rise, the water in like manner continues to run out. Besides the observations taken between Fort Point and Lime Point there were many others taken at various places throughout the Bay and on the Bar, all of which hays developed facts which are very curious and exceedingly interesting; not only on account of their connection with subjects of a purely scientific and military nature, hut from their relation to the commercial wants of our harbor. How far these current observations are regarded as favorable for the purpose for which they were instituted—that of dsfense—we did not learn. We imagine, however, that it would tax the ingenuity of our oldsst pilots to anchor a system of torpedoes in the strong current of ths Golden Gate, so as to have them in the right place at the right time. Douhtless thsy would have to be placed inside ths entrace of the harhor in more quiet waters, These are many questions besides the one of defense, hut connected with our commercial prosperity, that render it exceedingly desirable that we should havea complste and reliahle current chart of onr systsm of inland waters, showing ths directions and velocities of the currents throughout the Bay, at all the different stages of the tidss, We hope tosee sneh a chart at no distant day. J. 8. Parumprs’s New Boor on Mmnne, Erc,—This work is now printed and will be ready for distrihution from the ScrnTrio Press office, Nov. 18th. Our English cotemporary, the London fining Journal, the editor of which has perused some of the advance sheets, writes the following: Mining Literarurr.—A volume which promises to be of great value to practical miners, is at presant preparing for puhlication, and will be ready for issue in the course of a few weeks, by Messrs, Dewey and Co., of San Francisco, uuder the title of the Explorers’, Miners’, and Metallurgists’ Companion, hy Mr. J. S. Phillips, who is well known to the readers of the Mining Journal as having had considerahle experience in mining in Cornwall, and whose name in America is connected with the ‘‘ Wee Pet” assaying machine, which, although capable of being packed for travelling in a 5 or 6-inch hox, contains all the apparatus necessary for roasting, fusion, ignitiou, and all ths general purposes of the analyst and assayer. Mr. Phillips’s volume is divided into five sections. That treating of Geology and Mineralogy descrihes the formation of the earth, mineral veins, &c.;the supposed actions ard re-actions that have heen, and are continually, taking place; the peculiar characteristics of true fissure veins; and the more generally recognized premonitory indications, in the shallow portion of veins, for prohable increase of mineral in depth. The second section teaches how to explore, where to explore, the peculiar kinds of the primitive and secondary rocks that concern the miner, as being most con° genial for rich veins, &c. The remaining three sections are devoted to assaying and discriminations, mining and engineering, and metallurgy respectively. The volume will fill some 600 pages, more than three-fourths.of which are already printed. Messrs. Triihner and Co., of Paternoster: Row, wiJl supply the book in England, where it will, no doubt, find many readers. j