﻿CONTENTS, 



PART III. NOVEMBER, 1856. 



A liT. X I II. — Descriptions of some remains of fishes from the Carboniferous and Devonian Forma- 

 tions of the United States. By Joseph Leidy, M. D., 1 ..... 



ART. XIV. — Description of some remains of extinct Mammalia. By Joseph Leidy, M. D., 2 

 ART. XV.— On the Sandstone Fossils of Connecticut River. By James Deane, M. D., 3 

 ART. Xvl. — Plantae Kaneanae Grosnlandicse. Enumeration of Plants collected by Dr. E. K. 

 Kane, U. S. N., in his first and second expeditions to the Polar regions, with descriptions 

 and remarks. By Elias Durand, 4 ....... 



ART. XVII. — A Commentary on the Synopsis Fungorum in America Boreali media, degentium, 

 by L D. de Schweinitz. By the Rev. M. J. Berkeley, M. A., F. L. S., and the Rev. M. 



A. Curtis, F. A. A. A. S' 5 



ART. XVII I.— Synopsis of the Melolonthidse of the United States. By John L. Le Conte/ . 



159 

 166 

 173 



179 



205 



225 



PART IV. FEBRUARY, 1858. 



ART. XIX. — Descriptions of Exotic Genera and species of the family Unionidae. By Isaac 



Lea, LL. D ,' . . . . . . . . .289 



ART. XX. — Observations on a group of Cretaceous Fossil Shells, found in Tippah County, Miss., 



with descriptions of fifty-six new species. By T. A. Conrad, 8 .... 323 



ART. XXI.— On the Caducibranchiate Urodele Batrachians. By Edward Hallowell, M. D., 9 . 337 



ART. XXII.— On Trigonophrys rugiceps. By Edward Hallowell, M. D., ]0 . . .367 



Extra copies printed for the Author, 



April, 1856. 

 April, 1856. 

 April, 1856. 

 May, 1856. 

 July, 1856. 

 November, 1856. 

 January, 1858. 

 January, 1858. 

 January, 1858. 

 January, 1858. 



