470 Scientific Intel lagen ce. 
donné le nom de rotation, terme tout a-fait impropre, auquel il 
serait ehh pala hee substituer celui de cyclose, aboli par Hugo 
Mohl, et qui ex e plus exactment le mouvement circulaire du 
suc dans la cattle? (p. 117). And we learn that the term cyclosis 
is defined accordingly in England, in the last edition of the Micro- 
graphic Dictionary. So there is some good authority 2: the 
American use of the term in Europe. 
8. Notice of Papers on Pabvvoiey by A. Kowalevsky ; %  . 
Agassiz. (Communicated.)—A. Kowalevsky has published, unfor- 
tunately in Russian, two capital papers on Embryology. The one 
continues the investigations he had been carrying on regarding the 
existence rm and entoderm layer in the early embry- 
~ oo of fuvetebriien In the present paper he has given 
mary of the early stages of a Campanulana, confirming the 
sneREY atic of Wright and A. Agassiz. For Rhizostoma and 
previous oe except Seer For Pen via he shows @ 
direct development from the egg remarkably similar to that of the 
Geryonidae as we know it t from Heckel, Fol and Metschnikoff. 
it — ~ assage rom Reishee to Edwarde ia. He has 
added a w observations on the earli = embryonic stages of 
