Si/! WILLIAHf SIEMENS, F.R.S. 



349 



2 E 

 



X 







P9 a 



O ^ 



H 







H X * 



C3 f 



a hi 



03 ' 



QQ to 



tH S 



S 5 

 W < 



is 

 II 



3! 



