GALBRAITH & HAUGHTON'S SCIENTIFIC MANUALS. 



Experinie)ifal and Natural Science Series. 



MANUAL 



CCELENTERATA. 



JOSEPH EEAY GREENE, B.A. 



PROFESSOn OF NATUBuVL HICTORY IN THE QUEEN'S COIJ.EGE, CORK 



&C. &C. 



NEW IMPRESSION. 



LONDON : 

 LONaMANS, GKEEN, AND CO. 



1869. 



