44 DISCOVERY CH. 



1807, and attained the highest reputation as a naturalist 

 in Europe before he removed to the United States of 

 America when thirty-nine years of age. The nobility 

 of his character, his untiring efforts to increase the 

 knowledge of science, and his inspiring personality, 

 brought him many friends and pupils. An active 

 generation of Nature students was created by his work 

 and influence. His fiftieth birthday was celebrated on 

 May 28, 1857, at a club of distinguished men of which he 

 was a member ; and upon that occasion Longfellow read 

 a memorable poem in which occur the well-known verses: 



And Nature, the old nurse, took 



The child upon her knee, 

 Saying " Here is a story-book 



Thy Father has written for thee. 



" Come wander with me," she said, 



" Into regions yet untrod ; 

 And read what is still unread 



In the manuscripts of God." 



And he wandered away and away 

 With Nature, the dear old nurse, 



Who sang to him night and day 

 The rhymes of the universe. 



The only qualifications required for the study of 

 Nature's story-book are devotion to truth, and sincerity 

 of spirit ; all the other qualities will come to the pos- 

 sessor of these, and a habit of mind will be developed 

 that tries to face all facts squarely and honestly, 

 despises shams and false conventions, and exposes 

 superstition whenever it is encountered. These are 

 the standards of scientific integrity, and the man whose 

 ideals are dominated by them has found the way to 

 intellectual and spiritual salvation. 



Science seems to me to teach in the highest and strongest 

 manner the great truth which is embodied in the Christian 



