648 



INDEX. 



WHE 



Wheler's discoveries respecting 

 electricity, 533 



Wilde's prediction of new chemi- 

 cal elements, 524 



Will, definition of the human, 

 127, 605 



subjection of to the great prin- 

 ciples of nature, 127-133 



Williamson's prediction of a com- 

 plex organic compound, 232 



Wilson's discovery of the caver- 

 nous nature of the solar spots, 

 587 



Wollaston's discoveries, 107, 481, 

 505, 527 



invention of a goniometer, 478 



YEA 



Wollaston's inference of the 



chemical origin of the voltaic 



current, 592-593 

 Women as scientific investigators, 



282-284 

 Working, discovery by means of 



new methods of, 524 

 Writing, advantage of, 370-371 

 scientific, its influence upon 



the power of research, 271 



"\70UNG'S discovery of the inter- 

 I ference of light, 490-491, 528 

 Yearly magnetic variation, how 

 discovered, 577 



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