COISrTENTS. 



Vaviations in Taxodium and Pinus. By Thomas Meehan 300 



Remarks on the Geology and Mineralogy of Venezuela. By 



R. P. Stevens ••• •••• ^^^ 



Sixth Contribution to the Herpetology of Tropical America. 



By Edward D. Cope, A.M 305 



Notice of some remains of extinct Insectivora from Dakota. 



By Joseph Leidy ^1^ 



Observations on Reptiles of the Old World. Art. II. By 



E. D. Cope Sl*^ 



Note on some points in the structure and habits of the Palse- 



ozoic Crinoidea. By F. B. Meek and A. H. Worthen...... 323 



On the Seed Vessels of Forsy thia. By Thomas Meehan 334 



Remarks on some types of Carboniferous Crinoidea, Avith de- 

 scriptions of new genera and species of the same, and of 



one Echinoid. By F. B. Meek and A. H. Worthen 335 



Descriptions of seven new species of American Birds from va- 

 rious localities, with a note on Zonotrichia melanotis. 



By Geo. N. Lawrence •■■■ 359 



Analytical Table of the species of Baridius inhabiting the 



United States. By ■ John L. LeConte, M. D 361 



The Gyrinidse of America, north of Mexico. By John L. Le 



Conte, M. D ••••• 3*35 



Notes on the species of Agonoderus, Bradycellus and Stenolo- 

 phus inhabiting America, north of Mexico. By John L. 

 LeConte, M.D 373 



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