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 oj Em- 



Fig. 66. — Von Baer at about Seventy Years of Age. 



bryology just published under the editorship of Oskar 

 Hertwig. 



Von Baer's Especial Service.— Apart from special dis- 



