OFFICERS OF SECTIONAL COMMI'ITEES. XIU 



SECTION F. STATISTICS. 



President. — Col. Sykes, F.R.S., V.P. Statistical Society of 

 London. 



Vice-Presidents. — Sir Charles Lemon, Bart., M.P., F.R.S. 

 G. R. Porter, Esq. Charles W. Bigge, Esq. 



Secretaries. — James Heywood, Esq. W. R. Wood, Esq. 

 Win. Cargill, Esq. 



SECTION G. MECHANICAL SCIENCE. 



President. — Charles Babbage, Esq., F.R.S., &c. &c. 



Vice-Presidents. — Bryan Donkin, Esq., V.P. Inst. C,E., &c. 

 Sir John Robison, Sec. R.S.E. G. Stephenson, Esq. Pro- 

 fessor Willis. 



Secretaries. — R. Hawthorn, Esq. T. Webster, Esq., Sec. 

 Inst. C.E. C. VignoUes, Esq. 



CORRESPONDING MEMBERS. 



Professor Agassiz, Neufchatel. M. Arago, Secretary of the 

 Institute, Paris. A. Bache, Principal of Girard College, Phi- 

 ladelphia. Professor Berzelius, Stockholm. Professor De la 

 Rive, Geneva. Professor Dumas, Paris. Professor Ehrenberg, 

 Berlin. Baron Alexander von Humboldt, Berlin. Professor 

 Liebig, Giessen. Professor (Ersted, Copenhagen. Jean Plana, 

 Astronomer Royal, Turin. M. Quetelet, Brussels. Professor 

 Schumacher, Altona. 



