INDEX. 



WOOLDRIDGE'S METHOD. 



Wooldridge's method of preparing 



tissue-fibrinogen, 40x3 

 Word-centres, 739, 740 

 Worms, circulatory system in, 229 



Xanthine, 325, 330, 558 



presence in the spleen, 325 

 Xantho-proteic reaction, 395 



T. 



Yawning, mechanism of, 362 



ZYMOGEN. 



Yellow elastic fibre, 46 



fibro-cartilage, 56 



spot of Summering, 748, 772 

 Yolk-sac, 813, 817, 818 et seq. 

 Yolk-spherules, 801 

 Young-Helmholtz theory, 777, 779 



Z. 



Zona pellucida, 801, 806 

 Zonule of Zinn, 754 

 Zuntz, output of the heart, 246 

 Zymogen, 473, 480 



THE END. 



BRADBURY, AONRW & CO-, T.O., PRINTERS, LONDON" AND TONBEIDOB. 



