XX.X11 



REPORT 1865. 



SECTION G. MECHANICAL SCIENCE. 



President— Sir William George Armstrong, C.B., LL.D., F.R.S. 



Vice-Presidents. — J. F. Bateman, F.R.S. ; Admiral SirE. Belcher; Capt. Douglas 



Galton, R.E., F.R.S.; William Fairbairn, LL.D., F.R.S.; J. R. Napier; J. 



Nasmyth, F.R.S. ; Professor Rankine, LL.D., F.R.S. ; Charles Vignoles, F.R.S. 

 Secretaries.— P. Le Neve Foster, M.A. ; W. P. Marshall ; Walter May ; Henry 



Lea. 



CORRESPONDING MEMBERS. 



Professor Agassiz, Cambridge, Massa- 

 chusetts. 



M. Babinet, Paris. 



Dr. A. D. Bache, Washington. 



Captain Balavenetz, R.I.N. 



Dr. H. D. Buys Ballot, Utrecht. 



Dr. D. Bierens tie Haan, Amsterdam. 



Professor Bolzani, Kasan. 



Dr. Bergsma, Utrecht. 



Mr. P. G. Bond, Cambridge, U.S. 



M. Boutigny (d'Evreux). 



Professor Braschmann, Moscow. 



Dr. Cams, Leipzig. 



M. Des Cloizeaux, Paris. 



Dr. Ferdinand Cohn, Breslau. 



M. Antoine dAbbadie. 



Geheimrath von Dechen. 



M. De la Rive, Geneva. 



Professor Wilhelm Delfts, Heidelberg. 



Professor Dove, Berlin. 



Professor Dumas, Paris. 



Dr. J. Milne-Edwards, Paris. 



Professor Ehrenberg, Berlin. 



Dr. Eisenlohr, Carlsruhe. 



Professor Eneke, Berlin. 



Dr. A. Erman, Berlin. 



Professor A. Escher von der Linth, 

 Zurich, Switzerland. 



Professor Esmark, Christiania. 



Professor A. Favre, Genera. 



M. Leon Foucault, Paris. 



Professor E. Fremy, Pans. 



M. Frisiani, Milan. 



M. Gaudry. 



Dr. Geinitz, Dresden. 



Professor Asa Gray, Cambridge, U.S. 



Professor Grube. 



M. E. Hebert, Paris. 



Professor Henry, Washington, U.S. 



Dr. Hochstetter, Vienna.' 



M. Jacobi, St. Petersburg. 



Prof. Jessen, Med. et Phil. Dr., Grie.ss- 

 wald, Prussia. 



Professor Aug. Kekule, Ghent, Belgium. 



M. Khanikof, St. Petersburg. 



Professor Kiepert. 



Prof. A. Kolliker, Wurzburg. 



Professor Do Koninck, Liege. 



Professor Kreil, Vienna. 



Dr. Lamont. Munich. 



M. Le Verrier, Paris. 



Baron von Liebig, Munich. 



Professor Loomis, New Yuri;. 



Professor Gustav Magnus, Berlin. 



Professor Matteucci, Pisa. 



Professor P. Merian, Bale, Switzerland. 



Professor vonMiddeudorft',»S'i;.Prfws&w<7. 



M. l'Abbe Moigno, Paris, 



Dr. Arnold Moritz, Tiflis. 



Chevalier C. Negri. 



Herr Neumaver, Munich. 



Professor Nilsson, Sweden. 



Dr. N. Nordenskiold, Hetsingfors. 



M. E. Peligot, Paris. 



Prof. B. Pierce, Cambridge, U.S. 



Gustav Plaar, Strasburg. 



Professor Pliicker, Bonn. 



M. Constant Prevost, Paris. 



M. Quetelet, Brussels. 



Professor W. B. Rogers, Boston, U.S. 



Professor F. Rbmer. 



Herman Schlagintweit, Berlin. 



Robert Schlagintweit, Berlin. 



M. Werner Siemens, Vienna. 



Dr. Siljestrom, Stockholm. 



Professor J. A. de Souza, University of 



Coimbra. 

 Professor Adolph Steen, Copenhagen. 

 Professor Steenstrup. 

 Dr. Svanberg, Stockholm. 

 M. Pierre Tchihatchef. 

 Dr. Otto Torell, University of Lund. 

 Dr. Van der Hoeven, Ley den. 

 M. Vambery, Hungary. 

 M. de Verneuil, Paris. 

 Baron Sartorius von Waltershausen, 



Gbttingen. 

 Professor Wartmann, Genera. 

 Dr. Welwitsch. 



