50 SECTIONAL ADDRESSES. 



and precision, pure science advances again to the attack of fresh territory, 

 and so the process goes on at an ever accelerating rate. How long this 

 acceleration is destined to continue it is impossible to say. It shows few 

 signs of abating at present. But for all that I for one am not afraid that 

 our successors will be able to complain that we have left them no more 

 worlds to conquer. 



