EMBEYOLOGY. 



LIBRARY 



ADDENDA AND CORRIGENDA. 



Page 90, last line, for Peneus read Pen*us 



>*, si* lines from bottom, for Peneus read Penaus. 

 even lines 



: a 



to the elation o, fig, 58 and 76 tart (Afler M , ts ch a , M , 



partment of the whole science. If classified in iue 

 the science will naturally be divided into an Embryology of Plants, 

 and an Embryology of Animals ; each of which admits of further sub- 

 division. In the second way the subject falls under two primary 

 heads ; viz. Physiological Embryology and Anatomical Embryology. 



The present treatise deals only with the Embryology of Animals, 

 and is further confined to those animals known as Metazoa. The 

 science is moreover treated from the morphological or anatomical, 

 rather than from the physiological side. 



The marvellous phenomenon of the evolution of a highly 



complicated living being from a simple undifferentiated germ in 



which it needs the aid of the most modern microscopical appliances 



to detect any visible signs of life, has not unnaturally attracted the 



B. E. 1 



