336 THE DEBT OF THE WORLD TO PURE SCIENCE. 



withm this decade. We know nothing yet. We have gathered a few 

 large pebbles from the shore, but the mass of sands is yet to be 

 explored. 



And now the moral has been drawn. The pointing is simple. If 

 America, which, more than otlier nations, has profited by science, is to 

 retain her place, Americans must encourage, even urge, research; must 

 strengthen her scientific societies and her universities, that under the 

 new and more complicated conditions her scientific men and her invent- 

 ors may place and keep her in the front rank of nations. 



