

CONTENTS 



OF 



NO. IV., VOL. VI. 



Aet. XXV. New Species of Fossil Plants, from the Anthracite and Bitu] 

 minous Coal-fields of Pennsylvania ; collected and describee 

 by Leo Lesqueeeux. With Introductory Observations b] 

 Henet Daewin Rogees 



Aet. XXVI. Observations on the Development of Anableps Gronovii, (Cuv. &) 

 Val.) By Jeffeies Wyman, M. D. / 



Aet. XXVII. On the Crustacea and Echinodermata of the Pacific Shores o 

 North America. By William Stimpson 



Aet. XXVIII. A List of the Fishes collected in California by Mr. E. Sa:m 

 uels, with Descriptions of the New Species. By Chaele 



GlEARD, M. D - 





- 



