112 THE ADDRESSES, LECTURES, ETC., OF 



used was inferior, and very much less in price, the actual money 

 saving has been more than one-half." 



It would be as well to look these facts fairly in the face before 

 proceeding too far in the prosecution of new projects, involving, 

 perhaps, unnecessary expenditure of time and money. 



Yours faithfully, 



C. W. SIEMENS. 



12, QUEEN ANNE s GATE, S.W., October 20, 1875. 



ADDRESS 



Of DE. 0. W. SIEMENS, F.R.S.* 



President of the, Mechanical Section of Loan Exhibition of Scientific 

 Apparatus, delivered on the YliJi May, 1876. 



IN opening the proceedings of the Conferences regarding 

 mechanical science, it behoves me to draw attention to the lines 

 of demarcation which separate us from other branches of natural 

 science represented in this exhibition. 



In the Department of Applied Science we have collected here 

 apparatus of vast historical interest, including the original steam 

 cylinder constructed by Papin in 1690, the earliest steam-engines 

 by Savery and by James Watt, the famous locomotive engine the 

 " Rocket," by which George Stephenson achieved his arly 

 triumphs, as well as Bell's original marine engine, and a variety 

 of models illustrative of the progress of hydraulic engineering and 

 of machinery for the production of textile fabrics. In close 

 proximity to these we find a collection of models illustrative of 

 the remarkable advance in naval architecture which distinguishes 

 the present day. 



It would be impossible to deny the intrinsic interest attaching 

 to such a collection or its intimate connection with the progress 

 of pure science ; for how could science have progressed at the 

 rate evidenced in every branch of this exhibition, but for the 

 great power given to man through the mechanical inventions just 

 * Excerpt "Nature," May 18, 1876. 



