Volume 11 (1865) (424 pages)

264 Ghe Mining and Srlentific Press, Mining aud Scientific Bess. Wee Je LOE Gs sscaes coceennse de mooneaee Sentor EniTor. Cc. W. M. SMITH. DEWEHLY & Co. Publishers. . . W. UW. EWER. A. T. DEWEY. . Orricy—No. 505 Clay street, corner of Sansome, 2d floor. Terms of Subscription: One copy, per annum, inadvance,. One copy, six months, In advance,. keg~ For sale by Carriers and N: It ia Yinpoxsible for editors to know att the merits aud demerits of their correspoudence, consequently the reader must uot receive. the opinions of our contributor: asourown. Intellizeut discussion is inviled upon all sides and the evidence of any error which may appear will be re ceivediu friendship and treated with respect. American and Foreign Patents.—Letters Patent for Inventors can be seenre in the United States and foreign countries through the Minine aw Selentiric Pruss PaTENT AGENCY. We offer applicants reasonable terms, aud they ean rest assured of a strict compliance swith oar obligations, and afalthful performance of all contracts. For reference, we srill furnish the names of numerous parties for whom we hare obtamed patents during the past two years, Favorable to Inventors.—Persons holding new inventions of inachinery and important improvements, can have the same illustrated and explained in the Mining anp Sciznrimic Press, free of charge, if in our judginent the discovery is one of rcal merit, and of sutficicnt interest to our readers to warrant publication. Payment in Advance.--This paper wlll not be sent to subscribers beyond the term paid for. The publishers well know that a good journal canuot be sustained on the eredit system. os San Francisco: Saturday Morning, Oct. 28, 1865. STEAM-BOILER EXPLOSIONS. _ The late terrible steamboat accident on the Sacrainento river, has caused much earnest thought and greatly etimulated inquiry into the prohable eanse of certain cla:ses of steamboiler explosions, which, by almost universal conseut, are referred to other than tbe usual causes of neglect in the management, or impertection in the material or manufacture. In view of the tens of thousands of lives that are constantly in jeopardy, from the subtle, yet terrible force of confiued steam, it ig certainly a matter of no little astonishment that so little has been done, experimentally, to learn the true naturo and condition of steam under the nunierous extraordinary conditions in which it is liable to he placed in the countless localities and circumstances in and under which it is employed in the various uses of civilization. The internal pressure required to rend a steam hoiler may be very closely calculated for any given size of boiler, or thickuess of plates, and every engineer has constantly at hand the means of ascertaining almost precisely the amount of pressure he may have upon his hoiler ; yet it often happens that when all the known conditions of satety are fully complied with, the most terrible and destructive explosious occur. There are quite well authenticated cases of explosions which have occurred when, hut a moment before, the water guages have indicated an ample supply of water, aud the steam guages have assured the engineer that his degree eof steam pressure is far within the limits of mathematical safety, under any known and well understood condition of steam. Tbese facts appear to be so well authenticated as to fully justify the assumption of some violent internal action, which must take place at the instant preceding the actual rupture of the boiler--the rupture heing regarded as the ¢onsequence of such action, and not the result of mere statical pressure. In hypotheses of this kind various causes have heen assigned for the effects produced, among which are— Ist. A sudden production of steam from some cause or other not dependeut upon the regular induction of heat from the furnaces. 2d. Decomposition of steam and subsequent detonation of hydrogen, in the presence of oxygen, or otherwise. 3d. The spheroidal condition of the water in the boiler. 4th. Electrical action. Without committing ourselves to the accepta'ce or rejection of any one or more of the above hypotheses, we propose to cousider, in future numhers, the prohabilities or otherwise the of various explanations which have} been given hy prominent writers on these. matters, and to lay before our readers what. ever of especial interest upon this subject, or interesting and important to mechanics and . the public generally, we may be able to glean from authorities at our eommand. Engineers, everywhere, and learned men as well, are much more ignorant upon these things than they should he. Experimental science has, withiu a few years past, brought some things to light, . the practical value of which, or the exteut to . which they may actually come into operation, is not yet fully known. It is well, however, that engineers should be in possession of all that 7s known, to the end that they may exercise more eare to avoid the possibility of such easualties as have so frequently, of late, spread mourning and dismay over communities. i QITY TEACHERS’ INSTITUTE. We had the pleasure ofattending the monthly meeting of this body on Thursday evening. Under the new rule of the Board, the Principals of the various Grammar Schools take charge of the Institute in turn. This being the first meeting under the new order of thiugs, Mr. Marks, of the Spring Valley Schnol, appoiuted by the Superintendent for the occasion, set out with a determination to make the meetiug oneofinterest ; and that he succeeded, the frequent and hearty applause of the large audienee abundantly testified. Mr. M. opened the exercises by stating that as he believed in and loved his vocation, he had determined to make the exercises of the evening “disgustingly practieal,” and to carry out this portion of the programme, after a song bY the Iustitute,he ealled upon Mr. A. B. Andrews, teacher of writing in the public schools, who proceeded to give some interestiug and eminently practical hints in regard to teaching his favorite art. ‘This was followed by a song from the “‘I'welve,” and a very fine essay by Mrs. Griffiths of the Union School, the highly popular ‘“‘ Occasia Owen’’ of the Golden Era in which, though ou the rather unpromising subject of primary teaching, she fully sustained her high literary reputation. Lhis was followed by asong from Mrs. Marriner, which was received with rapturous applause, after whicb the Rev. J. D. Strong made some very stirring remarks on patriotism in. the schools, followed hy another song by the“ Twelve,” select readings by Miss Hitchinge, and the recitation by Mr. Burnell, Principal of the Latin School, of the celebrated soliloquy on death, from * Hamlet,” when, after a few remarks from Superintendent Pelton, congratulating Mr Marks aud the Institute on the successful character of the exercises of the evening —the ineeting adjourned. Such meetings as this fill a placein our social life which has long been vacant. The teachers have been left to the society of themselves and the children, until it has seemed in some cases that they had fost their place in the social econormy and belonged toa different race; but through the influence of such mectings as this, together with their increased salaries and ahridged hours of lahor, they are fast beginning to take their proper place in the social scale. We believe it is principally owing to ‘Teachers’ Institutes that the social position and influence of the teachers of San Francisco, are higher ald more extensive than those of the Public School teachers in almost any other city iu the world. Conmercr witH THE Sours.—According to the New York Aapress, there are three times as many steainers running hetween that port and Southern ports as could he counted before the rehellion. The commercial journals contain advertisements of steam lines connecting New York with almost every important Southern port. ‘There is also a great revival of steam communication hetween New York and foreign ports. Tre Chorera.—It is estimated that upwards of 50,000 lives had been lost in Constantinople at last accounts from that city. The daily mortality was variously estimated at from 1,500 to 2,500, and according to newspaper reports, the stench from imperfectly huried corpses was almost intolerahle. INTERESTING FROM THE GOLORADO. ‘We have just been placed in possession of some very interesting iutelligence from El Dorado Cajon, in the Colorado, hy our attentive eorrespondent Mr. Frank S. Alling, who arrived in this city on the Senator on Saturday last. Notwithstanding the great delays and inconvenience to that locality growing out of the hitherto unreliable and irregular character nf transportation from this city, the miners there are hopeful and perfectly confident of the future. he Colorado mill is now busy at work upon Queen eity ore. The results of the ernshiug is kept private; but our informant, who resides near the mill, has seen the result of several cleanings up, from which he is satisfied that the ore is paying remarkably well, and the amalgam taken out is as fine as is ever met with anywhere. Jt contaius a large percentage of gold. The New Era mill, is also about ready to start up again on Techatticup ore. NEW AND RICH DISCOVERIES REPORTED. Just previons to the departure of My. Alling parties arrived from Callville, a settlement on the Colorado, ahout thirty-five miles ahove El Dorado Canon, who reported that letters had heeu received at Callville stating that some extraordinary silver discoveries had recently been made on Mud Creek, a small stream emptying into the Rio Virgin, about four days travel uorth of El Dorado Canon. The veins are reported to be of extraordinary richness, similar in character to the rich mines of Batopolis, in northern Mexico, and like them cartying large quantities of native silver. These mines, it is supposed, are the eame as those reported hy a company of miners who, having lost their way ahout a year and a half ago, iu that region, discovered some very rich silver veins ; bnt could never find them afterwards. ‘The present discoverers are probably some Mormons, from tho Muddy settlement, a Mormon town some distance to the sonth. Quite a number of miners from Arizona have also now gone in and secured some fine locations. ‘The letters referred to ae being received at Callville, are fron sonie of these Aridiately. A company was made up at once at Callville, and several agents sent out. The first intelligence of this discovery is reported to have becn sent to Salt Lake and it is said that a large amount of money with machinery fora mill, has gone from thence to these new mines. These reports were causiug tnuch excitement at El] Dorado Canon wheu our informant left. The locality is very near tbe dividing liue between Utah and Arizona; the Mormons claim that it isin Utah, while the Ariozuians are of the opinion that 1t helougs to their territory. IMPORTANT TO NON-RUSIDENT MINE-HOLDERS 1N EL DORADO CANON. Mr. Alling informs us that there are a large nuniber of valuable mines scattered through El Dor:do Canon, and owned by uon residents, which are being neglected, and most of which have been forfeited by the laws of the district. On many of these claiins short tunnels have been run, shanties put up, aud mining tools of various descriptions, such as picks, shovels, blacksmith tonls, drills, eteel, powder, etc., left on the premises, with no one to look nfter them. ‘The Indians have of late heen prowling ahout there, and have stolen such of the pow‘der de they could readily find, stripped tbe cloth from many of the shanties, cut the leather from the bellows, to make into moccasins; and prohably some white men may have appropriated such tools as they needed to work with. To say nothing of the had policy of putting powder in the way of Indians, which they may: and doubtless will use to shoot white men with, we -should suppose that parties interested (and they are mostly residents of this city) would take some measures to preserve their property and look after their mining interests: The resident minere of the cafion have recently determiued that the laws of the district shall be enforced, and that nou-residente, who own the most of the valyable cloime, shall not be allowed much louger to hold them to the prejudice of the district. It is for the interest of all parties that they shonld be worked. Some have already heen re-located, and othere soon will he, anless prompt measnres are taken to comply with the rules for holding them. The resident miners have resolved to stand by one anotber in earrying ont these measures, and we have been requested to give this “ fair warning ” to all outsiders interested, that they may govern themselves accordingly. There can be no doubt of the ultimate value of these mines. It is said that fully sis-sevenths of the J mines in the cafion are in the pnsition of abandonment ahove described. REGULAR COMMUNICATION TO BE ESTABLISHED AT ONGE. Reecnt developments have so fully satisfied capitalists in this eity of the value of the minee of that regiou, and its future commercial importance, that Captain Trueworthy, who is now here superintending operations, has finally succeeded in the eomplete organization of a transportation company, with all the capital that may be needed to put on a line of sailing vessels to connect with the eteaniera on the Colorado, that ehall he sufficient to meet the fallest demands of the eommerce of that river, as fast as it shall be developed. The conipany will he knowu as the “ Pacific and Colorado Steam Navigation Company.” They own the Esmeralda, which is now on the river at Fort _ Yuma, and have quite recently bought the Niua Tilden, now at the mouth of the Colorado; awaiting the arrival of the schooner Toando, which has just left this city with a fnll freight, The Toando, will soon be followed hy another sailing vessel for the same destination. The company have fonr bargee on the river, which: with the etcaniers, are calculated to go up as high as Callville, aud will land passengers and freight at any point hetween that pluce and the mouth of the river. This company has been organized with especial reference to accommodating the mining public, and parties forwarding merchandise and machinery can depend upon its direct and regular transit. Capt. ‘Trueworthy is deserving of much credit for the enterprise and energy he has displayed in estab‘ ‘ a P, , . lishing this company, under circnmstance zonians asking théir friends to come up immc-. 8 pany. 3 of most peculir discouragement. Parties in this city interested in mines in the cafion, will do well to take early steps for eecoring their , interests agaiust any possibility of interference from jumpers. ‘I'he opening of permanent navigation will give an immediate value to their claims, and should operate as a further inducement to their prompt development. San Mareo Ivstitutse.— We have ‘received the annual circular and catalogue of the San Mateo Institute, presented iu a neat little pamphlet of sixteen pages, from the press of Dewey, Waters & Co. The object of this Institute is to afford young/ladiee the opportunity of acquiring a practical as well as an accomplished education. Tbe arrangement of hoth the literary and domestic departnient, is such as to combine all the advantages of a home education with those of a well-appointed academic Institute. The location has been most happily chosen, just far enowgh removed from the city to he heyond any improper metropolitan influ ence, and yet within easy reach for parents and friends—a locality poted for its pleasant scenery and delightful climate, and directly on the line of the San Jose und San Francisco railroad. We notice in its “ Register of Pupils * young ladies from almost every portion of the State. The Institute is under the immediste charge of Miss L. A. Buckmaster, as principal, assisted by a large and able corps of assistants in the various departments. Tne Pacific very significantly remarks that scores will nightly sleep upon our steamers without apprehension, while hundreds in the city will he wakeful, for fear of earthquakes. Yet earthquakes have not destroyed a life in years, while steainers have killed their hundreds within a score of months. Decomuposep quartz that will yield $500 per ton has been found near White Peak, in Sacramento county, says the Folsom Ztlegraph. j ‘

264 Ghe Mining and Srlentific Press, Mining aud Scientific Bess. Wee Je LOE Gs sscaes coceennse de mooneaee Sentor EniTor. Cc. W. M. SMITH. DEWEHLY & Co. Publishers. . . W. UW. EWER. A. T. DEWEY. . Orricy—No. 505 Clay street, corner of Sansome, 2d floor. Terms of Subscription: One copy, per annum, inadvance,. One copy, six months, In advance,. keg~ For sale by Carriers and N: It ia Yinpoxsible for editors to know att the merits aud demerits of their correspoudence, consequently the reader must uot receive. the opinions of our contributor: asourown. Intellizeut discussion is inviled upon all sides and the evidence of any error which may appear will be re ceivediu friendship and treated with respect. American and Foreign Patents.—Letters Patent for Inventors can be seenre in the United States and foreign countries through the Minine aw Selentiric Pruss PaTENT AGENCY. We offer applicants reasonable terms, aud they ean rest assured of a strict compliance swith oar obligations, and afalthful performance of all contracts. For reference, we srill furnish the names of numerous parties for whom we hare obtamed patents during the past two years, Favorable to Inventors.—Persons holding new inventions of inachinery and important improvements, can have the same illustrated and explained in the Mining anp Sciznrimic Press, free of charge, if in our judginent the discovery is one of rcal merit, and of sutficicnt interest to our readers to warrant publication. Payment in Advance.--This paper wlll not be sent to subscribers beyond the term paid for. The publishers well know that a good journal canuot be sustained on the eredit system. os San Francisco: Saturday Morning, Oct. 28, 1865. STEAM-BOILER EXPLOSIONS. _ The late terrible steamboat accident on the Sacrainento river, has caused much earnest thought and greatly etimulated inquiry into the prohable eanse of certain cla:ses of steamboiler explosions, which, by almost universal conseut, are referred to other than tbe usual causes of neglect in the management, or impertection in the material or manufacture. In view of the tens of thousands of lives that are constantly in jeopardy, from the subtle, yet terrible force of confiued steam, it ig certainly a matter of no little astonishment that so little has been done, experimentally, to learn the true naturo and condition of steam under the nunierous extraordinary conditions in which it is liable to he placed in the countless localities and circumstances in and under which it is employed in the various uses of civilization. The internal pressure required to rend a steam hoiler may be very closely calculated for any given size of boiler, or thickuess of plates, and every engineer has constantly at hand the means of ascertaining almost precisely the amount of pressure he may have upon his hoiler ; yet it often happens that when all the known conditions of satety are fully complied with, the most terrible and destructive explosious occur. There are quite well authenticated cases of explosions which have occurred when, hut a moment before, the water guages have indicated an ample supply of water, aud the steam guages have assured the engineer that his degree eof steam pressure is far within the limits of mathematical safety, under any known and well understood condition of steam. Tbese facts appear to be so well authenticated as to fully justify the assumption of some violent internal action, which must take place at the instant preceding the actual rupture of the boiler--the rupture heing regarded as the ¢onsequence of such action, and not the result of mere statical pressure. In hypotheses of this kind various causes have heen assigned for the effects produced, among which are— Ist. A sudden production of steam from some cause or other not dependeut upon the regular induction of heat from the furnaces. 2d. Decomposition of steam and subsequent detonation of hydrogen, in the presence of oxygen, or otherwise. 3d. The spheroidal condition of the water in the boiler. 4th. Electrical action. Without committing ourselves to the accepta'ce or rejection of any one or more of the above hypotheses, we propose to cousider, in future numhers, the prohabilities or otherwise the of various explanations which have} been given hy prominent writers on these. matters, and to lay before our readers what. ever of especial interest upon this subject, or interesting and important to mechanics and . the public generally, we may be able to glean from authorities at our eommand. Engineers, everywhere, and learned men as well, are much more ignorant upon these things than they should he. Experimental science has, withiu a few years past, brought some things to light, . the practical value of which, or the exteut to . which they may actually come into operation, is not yet fully known. It is well, however, that engineers should be in possession of all that 7s known, to the end that they may exercise more eare to avoid the possibility of such easualties as have so frequently, of late, spread mourning and dismay over communities. i QITY TEACHERS’ INSTITUTE. We had the pleasure ofattending the monthly meeting of this body on Thursday evening. Under the new rule of the Board, the Principals of the various Grammar Schools take charge of the Institute in turn. This being the first meeting under the new order of thiugs, Mr. Marks, of the Spring Valley Schnol, appoiuted by the Superintendent for the occasion, set out with a determination to make the meetiug oneofinterest ; and that he succeeded, the frequent and hearty applause of the large audienee abundantly testified. Mr. M. opened the exercises by stating that as he believed in and loved his vocation, he had determined to make the exercises of the evening “disgustingly practieal,” and to carry out this portion of the programme, after a song bY the Iustitute,he ealled upon Mr. A. B. Andrews, teacher of writing in the public schools, who proceeded to give some interestiug and eminently practical hints in regard to teaching his favorite art. ‘This was followed by a song from the “‘I'welve,” and a very fine essay by Mrs. Griffiths of the Union School, the highly popular ‘“‘ Occasia Owen’’ of the Golden Era in which, though ou the rather unpromising subject of primary teaching, she fully sustained her high literary reputation. Lhis was followed by asong from Mrs. Marriner, which was received with rapturous applause, after whicb the Rev. J. D. Strong made some very stirring remarks on patriotism in. the schools, followed hy another song by the“ Twelve,” select readings by Miss Hitchinge, and the recitation by Mr. Burnell, Principal of the Latin School, of the celebrated soliloquy on death, from * Hamlet,” when, after a few remarks from Superintendent Pelton, congratulating Mr Marks aud the Institute on the successful character of the exercises of the evening —the ineeting adjourned. Such meetings as this fill a placein our social life which has long been vacant. The teachers have been left to the society of themselves and the children, until it has seemed in some cases that they had fost their place in the social econormy and belonged toa different race; but through the influence of such mectings as this, together with their increased salaries and ahridged hours of lahor, they are fast beginning to take their proper place in the social scale. We believe it is principally owing to ‘Teachers’ Institutes that the social position and influence of the teachers of San Francisco, are higher ald more extensive than those of the Public School teachers in almost any other city iu the world. Conmercr witH THE Sours.—According to the New York Aapress, there are three times as many steainers running hetween that port and Southern ports as could he counted before the rehellion. The commercial journals contain advertisements of steam lines connecting New York with almost every important Southern port. ‘There is also a great revival of steam communication hetween New York and foreign ports. Tre Chorera.—It is estimated that upwards

of 50,000 lives had been lost in Constantinople at last accounts from that city. The daily mortality was variously estimated at from 1,500 to 2,500, and according to newspaper reports, the stench from imperfectly huried corpses was almost intolerahle. INTERESTING FROM THE GOLORADO. ‘We have just been placed in possession of some very interesting iutelligence from El Dorado Cajon, in the Colorado, hy our attentive eorrespondent Mr. Frank S. Alling, who arrived in this city on the Senator on Saturday last. Notwithstanding the great delays and inconvenience to that locality growing out of the hitherto unreliable and irregular character nf transportation from this city, the miners there are hopeful and perfectly confident of the future. he Colorado mill is now busy at work upon Queen eity ore. The results of the ernshiug is kept private; but our informant, who resides near the mill, has seen the result of several cleanings up, from which he is satisfied that the ore is paying remarkably well, and the amalgam taken out is as fine as is ever met with anywhere. Jt contaius a large percentage of gold. The New Era mill, is also about ready to start up again on Techatticup ore. NEW AND RICH DISCOVERIES REPORTED. Just previons to the departure of My. Alling parties arrived from Callville, a settlement on the Colorado, ahout thirty-five miles ahove El Dorado Canon, who reported that letters had heeu received at Callville stating that some extraordinary silver discoveries had recently been made on Mud Creek, a small stream emptying into the Rio Virgin, about four days travel uorth of El Dorado Canon. The veins are reported to be of extraordinary richness, similar in character to the rich mines of Batopolis, in northern Mexico, and like them cartying large quantities of native silver. These mines, it is supposed, are the eame as those reported hy a company of miners who, having lost their way ahout a year and a half ago, iu that region, discovered some very rich silver veins ; bnt could never find them afterwards. ‘The present discoverers are probably some Mormons, from tho Muddy settlement, a Mormon town some distance to the sonth. Quite a number of miners from Arizona have also now gone in and secured some fine locations. ‘The letters referred to ae being received at Callville, are fron sonie of these Aridiately. A company was made up at once at Callville, and several agents sent out. The first intelligence of this discovery is reported to have becn sent to Salt Lake and it is said that a large amount of money with machinery fora mill, has gone from thence to these new mines. These reports were causiug tnuch excitement at El] Dorado Canon wheu our informant left. The locality is very near tbe dividing liue between Utah and Arizona; the Mormons claim that it isin Utah, while the Ariozuians are of the opinion that 1t helougs to their territory. IMPORTANT TO NON-RUSIDENT MINE-HOLDERS 1N EL DORADO CANON. Mr. Alling informs us that there are a large nuniber of valuable mines scattered through El Dor:do Canon, and owned by uon residents, which are being neglected, and most of which have been forfeited by the laws of the district. On many of these claiins short tunnels have been run, shanties put up, aud mining tools of various descriptions, such as picks, shovels, blacksmith tonls, drills, eteel, powder, etc., left on the premises, with no one to look nfter them. ‘The Indians have of late heen prowling ahout there, and have stolen such of the pow‘der de they could readily find, stripped tbe cloth from many of the shanties, cut the leather from the bellows, to make into moccasins; and prohably some white men may have appropriated such tools as they needed to work with. To say nothing of the had policy of putting powder in the way of Indians, which they may: and doubtless will use to shoot white men with, we -should suppose that parties interested (and they are mostly residents of this city) would take some measures to preserve their property and look after their mining interests: The resident minere of the cafion have recently determiued that the laws of the district shall be enforced, and that nou-residente, who own the most of the valyable cloime, shall not be allowed much louger to hold them to the prejudice of the district. It is for the interest of all parties that they shonld be worked. Some have already heen re-located, and othere soon will he, anless prompt measnres are taken to comply with the rules for holding them. The resident miners have resolved to stand by one anotber in earrying ont these measures, and we have been requested to give this “ fair warning ” to all outsiders interested, that they may govern themselves accordingly. There can be no doubt of the ultimate value of these mines. It is said that fully sis-sevenths of the J mines in the cafion are in the pnsition of abandonment ahove described. REGULAR COMMUNICATION TO BE ESTABLISHED AT ONGE. Reecnt developments have so fully satisfied capitalists in this eity of the value of the minee of that regiou, and its future commercial importance, that Captain Trueworthy, who is now here superintending operations, has finally succeeded in the eomplete organization of a transportation company, with all the capital that may be needed to put on a line of sailing vessels to connect with the eteaniera on the Colorado, that ehall he sufficient to meet the fallest demands of the eommerce of that river, as fast as it shall be developed. The conipany will he knowu as the “ Pacific and Colorado Steam Navigation Company.” They own the Esmeralda, which is now on the river at Fort _ Yuma, and have quite recently bought the Niua Tilden, now at the mouth of the Colorado; awaiting the arrival of the schooner Toando, which has just left this city with a fnll freight, The Toando, will soon be followed hy another sailing vessel for the same destination. The company have fonr bargee on the river, which: with the etcaniers, are calculated to go up as high as Callville, aud will land passengers and freight at any point hetween that pluce and the mouth of the river. This company has been organized with especial reference to accommodating the mining public, and parties forwarding merchandise and machinery can depend upon its direct and regular transit. Capt. ‘Trueworthy is deserving of much credit for the enterprise and energy he has displayed in estab‘ ‘ a P, , . lishing this company, under circnmstance zonians asking théir friends to come up immc-. 8 pany. 3 of most peculir discouragement. Parties in this city interested in mines in the cafion, will do well to take early steps for eecoring their , interests agaiust any possibility of interference from jumpers. ‘I'he opening of permanent navigation will give an immediate value to their claims, and should operate as a further inducement to their prompt development. San Mareo Ivstitutse.— We have ‘received the annual circular and catalogue of the San Mateo Institute, presented iu a neat little pamphlet of sixteen pages, from the press of Dewey, Waters & Co. The object of this Institute is to afford young/ladiee the opportunity of acquiring a practical as well as an accomplished education. Tbe arrangement of hoth the literary and domestic departnient, is such as to combine all the advantages of a home education with those of a well-appointed academic Institute. The location has been most happily chosen, just far enowgh removed from the city to he heyond any improper metropolitan influ ence, and yet within easy reach for parents and friends—a locality poted for its pleasant scenery and delightful climate, and directly on the line of the San Jose und San Francisco railroad. We notice in its “ Register of Pupils * young ladies from almost every portion of the State. The Institute is under the immediste charge of Miss L. A. Buckmaster, as principal, assisted by a large and able corps of assistants in the various departments. Tne Pacific very significantly remarks that scores will nightly sleep upon our steamers without apprehension, while hundreds in the city will he wakeful, for fear of earthquakes. Yet earthquakes have not destroyed a life in years, while steainers have killed their hundreds within a score of months. Decomuposep quartz that will yield $500 per ton has been found near White Peak, in Sacramento county, says the Folsom Ztlegraph. j ‘