CONTENTS. 



XI. — On an Asphaltic Coal from the Shale of the Huron River, 

 Ohio, containing Seams of Sulphate of Baryta. By 

 Prof. Albert R. Leeds. (With a Geological Note 

 by Dr. J. S. Newberry.) 



XII.— On a New Species of Anarta, and on an Allied Genus, with 

 a Note on the Genus Adita. By Aug. R. Grote, . . 



XIII. — Morgan Expeditions, 1870-71. On the Devonian Trilo- 



bites and Mollusks of Erer6, Province of Para, Brazil. 



t. By Ch. Fred Hartt and Riciiard Rathbun, . . . 



XIV. — Note on a Name in Entomology proposed by the late Cole- 

 man Townsend Robinson. By Aug. R. Grote, . . . 



XV. — Some Observations on the Birds of Ritchie County, West 

 Virginia. By William Brewster, 



XVI. — Notes on the Sub-Generic Character of Helix Jamaicensis, 

 Chemn., and on Certain Terrestrial Mollusks from 

 Haiti ; with Description of a New Species of Helix 

 from Colorado. By Thomas Bland, 



105 



107 



110 



128 



129 



146 



®&esir->- 



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