Mr. Paget, on the part of the Auditors of the Treasurer s Ac • counts, announced that the total receipts during the past year, including a balance of £1006 17s. Id. carried from the account of the preceding year, amounted to £4252 12s. 0d., and that the total expenditure, including an investment of £800 in the hunds, was £3208 12s. 3d., leaving a balance in the hands of the Treasurer ot £1043 19s. 9 d. The thanks of the Society were voted to the Treasurer and Auditors.
{"title":"Anniversary Meeting. November 30, 1854","authors":"","doi":"10.1098/rspl.1854.0063","DOIUrl":"https://doi.org/10.1098/rspl.1854.0063","url":null,"abstract":"Mr. Paget, on the part of the Auditors of the Treasurer s Ac • counts, announced that the total receipts during the past year, including a balance of £1006 17s. Id. carried from the account of the preceding year, amounted to £4252 12s. 0d., and that the total expenditure, including an investment of £800 in the hunds, was £3208 12s. 3d., leaving a balance in the hands of the Treasurer ot £1043 19s. 9 d. The thanks of the Society were voted to the Treasurer and Auditors.","PeriodicalId":20661,"journal":{"name":"Proceedings of the Royal Society of London","volume":"1 1","pages":"247 - 263"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1098/rspl.1854.0063","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62115117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mr. Gassiot reported, on the part of the Auditors of the Treasurer’s Accounts, that the total receipts during the past year, including proceeds of the sale of j61500 Consols and a balance of ^47 9s. due to the Society’s Banker, amount to ^4841 18s. 4c?.; and that the total expenditure during the same period amounts to ^4814 12s. 8c?., leaving a balance in the hands of the Treasurer of 2/ os. 8 The thanks of the Society were voted to the Treasurer and Auditors. The President announced that Sir Philip de Malpas Grey Egerton, Bart., had been re-elected by the Council a Trustee of the Soane Museum.
加西奥先生根据财务帐目审计员的报告，过去一年的收入总额，包括出售61500美元的收入和479美元的结余。由于该协会的银行家，金额达4841美元。4 c ?。而同一时期的总开支为481412美元。8 c ?。在财务主管的手中留下了一笔余额。协会的感谢票投给了司库和审计员。主席宣布，理事会再次选举菲利普·德·马尔帕斯·格雷·埃格顿爵士为索恩博物馆的受托人。
{"title":"Anniversary Meeting. November 30, 1857","authors":"","doi":"10.1098/rspl.1857.0005","DOIUrl":"https://doi.org/10.1098/rspl.1857.0005","url":null,"abstract":"Mr. Gassiot reported, on the part of the Auditors of the Treasurer’s Accounts, that the total receipts during the past year, including proceeds of the sale of j61500 Consols and a balance of ^47 9s. due to the Society’s Banker, amount to ^4841 18s. 4c?.; and that the total expenditure during the same period amounts to ^4814 12s. 8c?., leaving a balance in the hands of the Treasurer of 2/ os. 8 The thanks of the Society were voted to the Treasurer and Auditors. The President announced that Sir Philip de Malpas Grey Egerton, Bart., had been re-elected by the Council a Trustee of the Soane Museum.","PeriodicalId":20661,"journal":{"name":"Proceedings of the Royal Society of London","volume":"1 1","pages":"23 - 40"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1098/rspl.1857.0005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62126262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Before the conclusion of his great work on Fossil Fishes, Pro fessor Agassiz recognized in some fragmentary remains found in the lias strata at Lyme Regis, unmistakeable evidence of the existence, at that period of the earth’s deposition, of a representative of the still extant family of the Sturgeons. To this extinct fish he assigned the name Chondrosteus. The author of the present memoir has been enabled, by the examination of numerous specimens more re cently acquired, to describe in some detail the external features of the fish, and the structural peculiarities of those portions of the exoand endo-skeleton which have been preserved. In the former respect the fossil differs from the recent sturgeon in having a shorter and deeper trunk, in the greater vertical expanse and wider diver gence of the lobes of the caudal fin, in the median position of the dorsal fin, and in the absence of dermal plates on the back, belly, and flanks. Before describing the cranial anatomy, the author points out certain homologies between the head-plates of the recent sturgeon and the epicranial bones of the teleostean fishes, more especially with reference to the parietals, mastoids and frontals ; and explains that these conclusions have resulted from the examination of the inner table of skull, where the relative position and propor tions of the component plates are constant, however much the outer or dermal layer may vary. The remainder of the memoir is devoted to detailed descriptions of such parts as are preserved in the several specimens; and the author concludes by stating as the result of his investigations, that Professor Agassiz was right in referring the liasic fish to the Sturionidse; that in some respects it evidenced a transitional form between the latter family and the more typical ganoids; that its food was similar to that of the existing members of the family, but that it was procured in a tranquil sea, rather than in the tumultuous waters frequented by sturgeons of the present time.
{"title":"IV. On Chondrosteus,an extinct genus of fish allied to the sturionidæ","authors":"P. D. M. Grey Egerton","doi":"10.1098/rspl.1857.0055","DOIUrl":"https://doi.org/10.1098/rspl.1857.0055","url":null,"abstract":"Before the conclusion of his great work on Fossil Fishes, Pro fessor Agassiz recognized in some fragmentary remains found in the lias strata at Lyme Regis, unmistakeable evidence of the existence, at that period of the earth’s deposition, of a representative of the still extant family of the Sturgeons. To this extinct fish he assigned the name Chondrosteus. The author of the present memoir has been enabled, by the examination of numerous specimens more re cently acquired, to describe in some detail the external features of the fish, and the structural peculiarities of those portions of the exoand endo-skeleton which have been preserved. In the former respect the fossil differs from the recent sturgeon in having a shorter and deeper trunk, in the greater vertical expanse and wider diver gence of the lobes of the caudal fin, in the median position of the dorsal fin, and in the absence of dermal plates on the back, belly, and flanks. Before describing the cranial anatomy, the author points out certain homologies between the head-plates of the recent sturgeon and the epicranial bones of the teleostean fishes, more especially with reference to the parietals, mastoids and frontals ; and explains that these conclusions have resulted from the examination of the inner table of skull, where the relative position and propor tions of the component plates are constant, however much the outer or dermal layer may vary. The remainder of the memoir is devoted to detailed descriptions of such parts as are preserved in the several specimens; and the author concludes by stating as the result of his investigations, that Professor Agassiz was right in referring the liasic fish to the Sturionidse; that in some respects it evidenced a transitional form between the latter family and the more typical ganoids; that its food was similar to that of the existing members of the family, but that it was procured in a tranquil sea, rather than in the tumultuous waters frequented by sturgeons of the present time.","PeriodicalId":20661,"journal":{"name":"Proceedings of the Royal Society of London","volume":"1 1","pages":"233 - 233"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1098/rspl.1857.0055","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62130951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Foreign Secretary.—William Hallows Miller, Esq., M.A. Other Members of the Council.'—John Couch Adams, Esq., M.A., D.C.L.; Sir William George Armstrong, C .B .; Benjamin Guy Babington, M.D. ; Sir Benjamin Collins Brodie, Bart., D .C.L.; George Bowdler Buckton, E sq.; William Benjamin Carpenter, M .D .; Sir Philip de Malpas G. Egerton, Bart. ; William Fairbairn, LL .D .; Captain Douglas Galton, R .E .; William Robert Grove, Esq., M.A., Q.C.; William Hopkins, Esq., M.A., LL.D. ; John Lubbock, Esq.; James Paget, Esq.; Joseph Prestwich, Esq.; William Spottiswoode, Esq., M .A .; John Tyndall, Esq. Dr. W. B. Carpenter, Mr. Gassiot, Mr. Lubbock, Dr. W. A. Miller and Dr. John Webster, having been nominated by the President, were elected by ballot Auditors of the Treasurer’s Accounts on the part of the Society.
外交大臣。——威廉·哈洛斯·米勒先生，文学硕士其他理事会成员。——约翰·库奇·亚当斯先生文学硕士，文学博士;威廉·乔治·阿姆斯特朗爵士，c.b.;Benjamin Guy Babington，医学博士;本杰明·柯林斯·布罗迪爵士，巴特，d.c.l;George Bowdler Buckton, E sq.;威廉·本杰明·卡彭特，医学博士;菲利普·德·马尔帕斯·埃格顿爵士，巴特;威廉·费尔贝恩，法学博士;道格拉斯·高尔顿船长，r.e.;威廉·罗伯特·格罗夫先生，文学硕士，文学学士;威廉·霍普金斯先生。，文学硕士，法学博士;约翰·拉伯克先生;詹姆斯·佩吉特先生;约瑟夫·普雷斯特维奇先生;威廉·斯波蒂斯伍德先生。m .;约翰·廷德尔先生。经会长提名的w·b·卡彭特博士、加西奥先生、拉伯克先生、w·a·米勒博士和约翰·韦伯斯特博士经投票选举当选为协会财务会计审计员。
{"title":"Papers of the Society, November 21, 1861","authors":"","doi":"10.1098/rspl.1860.0095","DOIUrl":"https://doi.org/10.1098/rspl.1860.0095","url":null,"abstract":"Foreign Secretary.—William Hallows Miller, Esq., M.A. Other Members of the Council.'—John Couch Adams, Esq., M.A., D.C.L.; Sir William George Armstrong, C .B .; Benjamin Guy Babington, M.D. ; Sir Benjamin Collins Brodie, Bart., D .C.L.; George Bowdler Buckton, E sq.; William Benjamin Carpenter, M .D .; Sir Philip de Malpas G. Egerton, Bart. ; William Fairbairn, LL .D .; Captain Douglas Galton, R .E .; William Robert Grove, Esq., M.A., Q.C.; William Hopkins, Esq., M.A., LL.D. ; John Lubbock, Esq.; James Paget, Esq.; Joseph Prestwich, Esq.; William Spottiswoode, Esq., M .A .; John Tyndall, Esq. Dr. W. B. Carpenter, Mr. Gassiot, Mr. Lubbock, Dr. W. A. Miller and Dr. John Webster, having been nominated by the President, were elected by ballot Auditors of the Treasurer’s Accounts on the part of the Society.","PeriodicalId":20661,"journal":{"name":"Proceedings of the Royal Society of London","volume":"1 1","pages":"445 - 447"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1098/rspl.1860.0095","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62149131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
After the reading of my paper on the 21st ultimo, Professor Stokes was so good as to suggest that some of my experiments should be repeated with ozone, prepared by the action of a coil, instead of that of phosphorus. Professor Guthrie was so kind as to furnish me with a couple of bottles of ozone, prepared by sending oxygen slowly through Wills’s generator in connexion with an induction coil.
{"title":"III. On the action of ozone on nuclei","authors":"C. Tomlinson","doi":"10.1098/rspl.1878.0049","DOIUrl":"https://doi.org/10.1098/rspl.1878.0049","url":null,"abstract":"After the reading of my paper on the 21st ultimo, Professor Stokes was so good as to suggest that some of my experiments should be repeated with ozone, prepared by the action of a coil, instead of that of phosphorus. Professor Guthrie was so kind as to furnish me with a couple of bottles of ozone, prepared by sending oxygen slowly through Wills’s generator in connexion with an induction coil.","PeriodicalId":20661,"journal":{"name":"Proceedings of the Royal Society of London","volume":"27 1","pages":"290 - 291"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1098/rspl.1878.0049","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62240357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Let A, B, C be three wheels rolling in one another (fig. 1); they may of course be supposed to describe simultaneously the angles mθ, nθ, rθ, when m, n,and r are constant. Let α, β, γ be three nuts situated on A, B, C respectively, at distances a, b, c from their centres. Then if these nuts work in horizontal bars (as exemplified in many sewing-machines), the bars will descend vertically through the spaces a sin mθ, b sin nθ, c sin rθ respectively. We may combine all these vertical motions together; for if vertical rods be attached to the horizontal bars, and a cord fixed at Q, pass over the pulleys a1, A2, a3 b1 , B2, b3, c1, C2, c3, as shown in the figure, the other extremity Q1 will describe the space a sin mθ + b sin nθ + c sin rθ. By this contrivance we are able to combine any number of vertical descents, so that it is readily seen that a sin (mθ + α) + b sin (nθ + β ) + &c. may be described mechanically. A machine on the same principle as this had been previously invented by Mr. Bashforth.
设A、B、C为三个相互滚动的轮子(图1);当然，它们可以同时描述角度mθ， nθ， rθ，当m, n, r为常数时。设α， β， γ为三个坚果，分别位于A, B, C上，离中心距离为A, B, C。然后，如果这些螺帽在水平条上工作(就像许多缝纫机上的例子一样)，这些条将分别垂直穿过空间a sin mθ， b sin nθ， c sin rθ。我们可以把所有这些垂直运动结合在一起;如图所示，如果将纵杆与横杆相连，并在Q处固定一根绳子，穿过滑轮a1, A2, a3 b1, B2, b3, c1, C2, c3，另一端Q1将描述空间a sin mθ + b sin nθ + c sin rθ。通过这种方法，我们可以组合任意数量的垂直下降，因此很容易看到a sin (mθ + α) + b sin (nθ + β) + &c。可以机械地描述。巴什福斯先生先前发明了一种原理与此相同的机器。
{"title":"XXVIII. On the mechanical description of curves","authors":"W. H. Russell","doi":"10.1098/rspl.1869.0022","DOIUrl":"https://doi.org/10.1098/rspl.1869.0022","url":null,"abstract":"Let A, B, C be three wheels rolling in one another (fig. 1); they may of course be supposed to describe simultaneously the angles mθ, nθ, rθ, when m, n,and r are constant. Let α, β, γ be three nuts situated on A, B, C respectively, at distances a, b, c from their centres. Then if these nuts work in horizontal bars (as exemplified in many sewing-machines), the bars will descend vertically through the spaces a sin mθ, b sin nθ, c sin rθ respectively. We may combine all these vertical motions together; for if vertical rods be attached to the horizontal bars, and a cord fixed at Q, pass over the pulleys a1, A2, a3 b1 , B2, b3, c1, C2, c3, as shown in the figure, the other extremity Q1 will describe the space a sin mθ + b sin nθ + c sin rθ. By this contrivance we are able to combine any number of vertical descents, so that it is readily seen that a sin (mθ + α) + b sin (nθ + β ) + &c. may be described mechanically. A machine on the same principle as this had been previously invented by Mr. Bashforth.","PeriodicalId":20661,"journal":{"name":"Proceedings of the Royal Society of London","volume":"18 1","pages":"72 - 74"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1098/rspl.1869.0022","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62193181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vol. VII. Page 394, line 6 from foot, dele half. — — 398, — 4 from top, for 2,000,000 read 5200 X 106; and for 8,200,000 read 21000 X 106. — — ib. — 10 from top, for 10 tons read 53600 x 106 tons; and for 42 tons read 874000 x 106 tons.
第七卷。。394页，第6行，删去一半。- - 398， - 4从顶部，为2,000,000读取5200 X 106;对于8,200,000，读取21000 X 106。- - ib. - 10从顶部开始，10吨为53600 x 106吨;42吨等于874000 x 106吨。
{"title":"Professor Thomson desires to make the following corrections","authors":"","doi":"10.1098/rspl.1856.0001","DOIUrl":"https://doi.org/10.1098/rspl.1856.0001","url":null,"abstract":"Vol. VII. Page 394, line 6 from foot, dele half. — — 398, — 4 from top, for 2,000,000 read 5200 X 106; and for 8,200,000 read 21000 X 106. — — ib. — 10 from top, for 10 tons read 53600 x 106 tons; and for 42 tons read 874000 x 106 tons.","PeriodicalId":20661,"journal":{"name":"Proceedings of the Royal Society of London","volume":"45 1","pages":"i - i"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1098/rspl.1856.0001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62118338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Let arrangements be made for the reversion, of the prisms without any disturbance of the other optical arrangements, including, of course, the position of the cylindrical lens, if one be used. Any slight errors of adjustment which prevent the light from the star and the comparison light from falling upon the train of prisms under the same optical circumstances, so far as mere direction is concerned, will have opposite effects in the reversed positions of the prisms; but the separation of the emergent lights due to relative motion will remain unchanged by the reversal of the positions of the prisms.
{"title":"III. On a method of destroying the effects of slight errors of adjustment in experiments of changes of refrangibility due to relative motions in the line of sight","authors":"E. Stone","doi":"10.1098/rspl.1880.0052","DOIUrl":"https://doi.org/10.1098/rspl.1880.0052","url":null,"abstract":"Let arrangements be made for the reversion, of the prisms without any disturbance of the other optical arrangements, including, of course, the position of the cylindrical lens, if one be used. Any slight errors of adjustment which prevent the light from the star and the comparison light from falling upon the train of prisms under the same optical circumstances, so far as mere direction is concerned, will have opposite effects in the reversed positions of the prisms; but the separation of the emergent lights due to relative motion will remain unchanged by the reversal of the positions of the prisms.","PeriodicalId":20661,"journal":{"name":"Proceedings of the Royal Society of London","volume":"31 1","pages":"381 - 381"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1098/rspl.1880.0052","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62258911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
this nitrile is converted into an acid which M. Merz describes under the name of naphthaline-carboxylic acid. The opinion expressed by this chemist, that his acid might be identical with the one observed by myself, I am inclined to adopt, although there are still some few discrepancies in our observations to be elucidated. M. Merz states that the fusing-point of his acid is at 140°, whilst the acid examined by myself fuses at 160°. In order to remove, if possible, this discrepancy, I have, since I saw M. Merz’s paper, again and repeatedly taken the fusing-point of menaphthoxylic acid, but always with the same result. Possibly the fusingpoint of the acid prepared by means of a sulphonaphthylate may be found somewhat higher when the compound is carefully purified by repeated crystallization from alcohol. 306 Mr. Reed on the Form, Dimensions, [Mar. 19}
{"title":"II. On the relation of form and dimensions to weight of material in the construction of iron-clad ships","authors":"E. Reed","doi":"10.1098/rspl.1867.0060","DOIUrl":"https://doi.org/10.1098/rspl.1867.0060","url":null,"abstract":"this nitrile is converted into an acid which M. Merz describes under the name of naphthaline-carboxylic acid. The opinion expressed by this chemist, that his acid might be identical with the one observed by myself, I am inclined to adopt, although there are still some few discrepancies in our observations to be elucidated. M. Merz states that the fusing-point of his acid is at 140°, whilst the acid examined by myself fuses at 160°. In order to remove, if possible, this discrepancy, I have, since I saw M. Merz’s paper, again and repeatedly taken the fusing-point of menaphthoxylic acid, but always with the same result. Possibly the fusingpoint of the acid prepared by means of a sulphonaphthylate may be found somewhat higher when the compound is carefully purified by repeated crystallization from alcohol. 306 Mr. Reed on the Form, Dimensions, [Mar. 19}","PeriodicalId":20661,"journal":{"name":"Proceedings of the Royal Society of London","volume":"1 1","pages":"306 - 310"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1098/rspl.1867.0060","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62183369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Since the elaborate experiments of Deville and Troost on the vapour densities of substances at high temperatures, little has been added to chemical science in this field of research. Doubtless this is in great part owing to the difficulty of any one student manipulating the complex apparatus necessary for the execution of the experiments. But the operations are greatly increased in difficulty when we select bodies that are readily inflammable in air and attack with facility glass and porcelain at the high temperatures to which they are exposed.
{"title":"I. On the vapour-density of potassium","authors":"J. Dewar, W. Dittmar","doi":"10.1098/rspl.1872.0042","DOIUrl":"https://doi.org/10.1098/rspl.1872.0042","url":null,"abstract":"Since the elaborate experiments of Deville and Troost on the vapour densities of substances at high temperatures, little has been added to chemical science in this field of research. Doubtless this is in great part owing to the difficulty of any one student manipulating the complex apparatus necessary for the execution of the experiments. But the operations are greatly increased in difficulty when we select bodies that are readily inflammable in air and attack with facility glass and porcelain at the high temperatures to which they are exposed.","PeriodicalId":20661,"journal":{"name":"Proceedings of the Royal Society of London","volume":"21 1","pages":"202 - 204"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1098/rspl.1872.0042","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62210393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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