BULLETIN No. 4, VOL. Ill 



TABLE OF CONTENTS. 



Xon. Titles. Pages. 



ART. XXIX.— The First Discovered Traces of Fossil Insects in 



the American Tertiaries. By Samuel H. Scudder . 741-762 



ART. XXX. — Description of Two Species of Carabidae found in 

 the Interglacial Deposits of Scarboro' Heights, 

 near Toronto, Canada. By Samuel H. Scudder. 763-764 



ART. XXXI.— Report upon the Insects collected by P. R. Uhler 

 during the Explorations of 1875, including 

 Monographs of the Families Cydnidee and Saldse, 

 and the Hemiptera collected by A. S. Pack- 

 ard, Jr., M. D. By P. R. Uhler. (Continued 

 from p. 475) 765-802 



ART. XXXII. — Description of Cambarus Couesi, a New Species of 

 Crawfish from Dakota. By Thos. H. Streets, 

 M. D.,U. S. N • 802-804 



ART. XXXIII. — On a Carnivorous Diuosaurian fi'om the Dakota 



Beds of Colorado. By E. D. Cope 805-806 



ART. XXXIV.— A Contribution to the Knowledge of the Ichthy- 

 ological Fauna of the Green River Shales. By 

 E. D. Cope 807-820 



ART. XXXV.— On the Genus Erisichthe. By E. D. Cope 821-823 



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