C REPOllT — 1875. 



The telescope extended our vision to distant worlds. The spectroscope has 

 far outstripped that instrument, by extending our powers of analysis to re- 

 gions as remote. 



Postal deliveries were and are great and able organizations ; but what are 

 they to the telegraph ? 



Need we try to extend our vision into futurity further? Our present 

 knowledge, compared to what is unknown even in physics, is infinitesimal. 

 We may never discover a new force — yet, who can teU ? 



