INDEX. 



643 



The Numbers refer to the Paragraphs. 



White matter of nervous system, 110, 281 

 Williams, Dr., on contractility of bronchi, 

 527; on Necreemia, 592; on Inflamma- 

 tion, 606 



Willis, Mr., his researches on the Voice, 408 

 Wings of Insects, interlacement of nerves 

 supplying, 113, 147; rapidity of motioa 

 of, 397 



Young animals, low calorifying power of, 

 728 ; influence of cold upon, 728 



Zona pellucida, 739 



THE END. 



