THE RISE OF EMBRYOLOGY 217 
reproduced in Fig. 66, is, however, destined to be the one by 
which he is commonly known to embryologists, since it forms 
the frontispiece of the great cooperative Handbook of Em- 
Fic. 66.—Von BakER AT ABOUT SEVENTY YEARS OF AGE. 
bryology just published under the editorship of Oskar 
Hertwig. 
Von Baer’s Especial Service.—-Apart from special dis- 
