i- 



TEXT-BOOK 



OF 



EMBRYOLOGY 







VOL. I 



INVERTEBRATA 



BY 



E. W. MAcBEIDE, M.A., D.Sc., LL.D, F.R.S. 



PROFESSOR OF ZOOLOGY AT THE IMPERIAL OU.r.EcjR OF SCIENCE AND TECHNOLOGY 



SOUTH KENSINGTON 



EDITED I'-V 



WALTER HE APE, M.A., F.K.S. 



MARJN 

 BiOLOGJCAL 

 LABORATORY 



LIBRARY 



WOODS HOLE, MASS. 

 W. H. 0. i. 



M ACM ILL AN AND CO, LIMITED 

 ST. MARTIN'S STREET, LONDON 



1914 



