HANDBOOK 



OF 



IPERTEBRATE ZOOLOGY, 



FOR LABORATORIES AND SEASIDE STUDY. 

 B-y -W". IS. BROOKIS, 



Associate Professor of Zoologry and ComparatiTe Anatomy, and 



Director of the Marine Laboratory of the Johns Hopkins 



University : formerly Assistant in the Boston Society 



of Natural History. 



The book contains directions for studying the g-eneral anatomy, the micro- 

 scopic structure, and tlie development of selected types of animal life; and it 

 also describes the method of collecting and preserving the forms which are de- 

 scribed. The following are some of the subjects treated : 



The structure of Vorticellae, 



The reproduction of Vorticellae, 

 The structure of a Sponge, 



The structure and growth of a Campanularian Hydroid, 

 The stnicture and development of a. Hydro-Medusa, 

 The general anatomy of a Starfish, 



The microscopic anatomy of a Starfish. 



The general anatomy of a Sea Urchin, 

 The embryology and metamorphosis of the Sea Urchin and Starfish, 

 The general anatomy of the Earthworm, 



The microscopic structure of the Earthworm, 

 The anatomy of the Leech, 



The anatomy of a Crab. 



The metamorphosis of a Crab, 



The structure and development of Cyclops, 

 The anatomy of a Grasshopper, 



The general anatomy of Unio, 



The microscopic anatomy of Unio, 



The embryology and metamorphosis of Unio, 



The anatomy and embryology of the Squid. 



Illustrated hy nearly two hundred cuts from the author's draw- 

 IngSf or from drawings made from nature under his direction* 



S. E. CASSINO, Publisher, 



BOSTON, MASS. 



