VI CONTENTS OF THE WHOLE VOLUME. 



XVIIL — On a Peculiar Type of Eruptive Mountains in Colorado. By A. C. 



Peale 551 



XIX.— Eeport on the Geology of the Region of the Judith Elver, Montana, 

 and on Vertebrate Fossils obtained on or near the Missouri River. 



By E. D. Cope. (Plates 30-34) 565 



XX. — Paleontological Papers No. 1. — Descriptions of Unionidse and Phy- 

 sidae collected by Prof. E. D. Cope from the Judith River Group of 

 Montana Territory during the summer of 1876. By C. A. White, 



M. D . . /. /~'J¥yfi^/yy^. .T .♦ .599 



XXI.— Paleontological Papers No. 2. — Descriptions of New Species of Uniones 

 and a New Genus of Fresh-water Gasteropoda from the Tertiary 



Strata of Wyoming and Utah, By C. A. White, M. D 603 



XXII. — Paleontological Papers No. 3. — Catalogue of the Invertebrate Fossils 

 hitherto published from the Fresh- and Brackish-water Deposits of 



the Western portion of North America. By C. A. White, M. D 607 



XXIII. — Paleontological Papers No. 4. — Comparison of the North American 

 Mesozoic and Cenoisoic Unionidse and associated Mollusks with Liv- 

 ing Species. By C. A. White, M. D 615 



XXIV. — Paleontological Papers No. 5 — Remarks on the paleontological char- 

 acteristics of the Cenozoic and Mesozoic Groups as developed in the 



Green River Region. By C. A. White, M. D 625 



i XXV. — Precursory Notes on American Insectivorous Mammals, with Descrip- 

 tions of New Species. By Dr. Elliott Coues, U. S. A.... 631 



XXVI. — Notes on the Ornithology of the Region about the Source of the Red 

 River of Texas, from observations made during the Exploration 

 conducted by Lieut. E. H. Ruifner, Corps of Engineers, U. S. A. By 

 C. A. H. McCauley, Lieutenant Third United States Artillery. An- 

 notated by Dr. Elliott Coues, U. S. A 655 



XXVII. — Catalogue of the Laud and Fresh-water Shells of Nebraska. By Sam- 

 uel Aughey, Ph. D 697 



XXVIII. — Notes on the Geographical Work of the United States Geological and 

 Geographical Survey of the Territories. By A. D. Wilson, Chief 

 Topographer. (Plates 35-39) 705 



BULLETIN No. 4:.— August 15, 1877. 



XXIX. — Th« First-discovered Traces of Fossil Insects in the American Tertia- 



ries. By Samuel H. Scudder 741 



XXX. — Description of Two Species of CarabidiB, found in the Interglacial De- 

 posits of Searboro' Heights, near Toronto, Canada. By Samuel H. 



Scudder 763 



XXXI. — Eeport upon the Insects collected by P. R. Uhler during the Explora- 

 tions of 1875, including Monographs of the Families Cydnidaj and 

 Saldfe, and the Hemiptera collected by A. S. Packard, jr., M. D. By 



P. R. Uhler. (Continued from p. 475) 765 



XXXII. — Description of Cambarus couesi, a New Species of Crawfish from Da- 

 kota. By Thos. H. Streflts, M. D., U. S. N 803 



XXXIII. — On a Carnivorous Dinosaurian from the Dakota Beds of Colorado, 



By E. D. Cope 805 



XXXIV. — A Contribution to the knowledge of the Ichthyological Fauna of the 



Green River Shales. By E. D. Cope 807 



XXXV.— On the Genus Erisichthe. Hy E. D. Cope 821 



