JOSEPH F. JAMES (the author), Cincinnati, Ohio. 



"A Revision of the genus Clematis of the United States." 



EDWARD POTTS (the author), Philadelphia, Pa. 

 " Fresh Water Sponges." 



J. S. FAY (the author), Wood's Holl, Mass. 



Wood's Holl. Tlie Track of the Norseman. 



W. M. DAVIS (the author), Boston, Mass. 



"Structural value of the Trap Ridges of the Connecticut Valley." 



Prof. A. S. PACKARD, Jr. (the author), Providence, R. I. 

 " The Systematic Position of the Archipolypoda." 

 " Repugnatorial Pores in the Lysiopetalidae." 

 " Notes on Lepidopterous Larvae." 

 " A new species of Polydesmus with eyes." 



J. C. DALTON, M.D., New York. 



"Experimentation on Animals." (The author). 



" A Treatise on Human Physiology." (The author). 



"Anatomy of the Invertebrata." — Siebold. 



" Entozoa." — Cobbold. 



" Lepidosiren Paradoxa." — Bischoff. 



'^Entwickeluugsgeschichte der Cephalopoden." — Kblliker. 



"Tiber die Entwickehmg der Schildkroten." — Rathke. 



" Uber das Nabelblaschen und die Allantois." — Mayer. 



" De hepate et bile Crustaceorum et Molluscorum." — Karsten. 



"Uber die Spermatozoiden der Locustien." — Siebold. 



" The Placenta and Generative apparatus of the Elephant." — Chapman. 



A Sketch of the Progress of American Mineralogy. — Brush. 



Report of the Supt., of the U. S. Coast Survey. "]859, 1866. 



Report of the U. S. Geological Survey. Clarence King, Director. 



U. S. Geological Survey of the Territories. Vol. XII. Fresh-water Rhi- 



zopods of North America. — Leidy. 

 Census Bulletin. No. 263. 



" " Extra. Cereal Production of the United States. 



U. S. Geog. Survey West of the 100th Meridian. Vol. VI. Botany. 

 " Grasses and Forage Plants" (second edition). — Flint. 

 " On the Food of Animals." — Thomson. 

 " On the Structure of the Orang Outang." — Chapman, 

 Sitzungsberichte der Mathem. Nat. Classe LXXXIV, Bd., III. Heft. 



C. D. WALCOTT, Esq., Washington, D. C. 



Report of the Chief of Engineers, for the years 1877—81. 



Miss ELLEN COLLINS, New York. 



" Experiment to Determine the Comparative Value of Fuel." — Bull. 

 " Essay on Vision." — Adams. 



CHAS. TUNISON, Esq., New York. 



Transactions of the New York State Agricultural Society. Vol. XXIV, 

 1864; XXVI, 1866. 



C. WACHSMUTH, Esq., Burlington, la. 



Remarks on Glyptocrinus and Reteocrinus, two genera of Silurian criuoids. 

 By Wacksmuth and Springer. 



L. P. GRATACAP, Esq , Staten Island, N. Y. 



" Night- and Fog-signalling Apparatus." — Vreede. 



Dr. J. B. HOLDER, New York. 



" Chemistry of the Cobb-Bishop Poisoning." — Doremus and Witthaus. 

 "Annual Descriptive Catalogue, ' Roses.'" — Bridgeman's. 



