Annual Report.] 334 [May 4, 



ADDITIONS TO THE LIBRARY 



DURING THE YEAR ENDING APRIL 30, 1870. 



Contributions to the Mineralogy of Nova Scotia. By Professor How. iv. 

 8vo. Pamph. 1869. From the Author. 



A Guide to the Study of Insects. By A. S. Packard, Jr., M. D. Parts vn- 

 x. 8vo. Salem, 1869. From the Author. 



Appendix to Report on Mollusca. By E. S. Morse. 8vo. Pamph. Salem, 

 1869. From the Author. 



I. Reapparition du Genre Arethusina Barr. II. Faune Silurienne des Envi- 

 rons de Hof, en Bavierre. Par Joachim Barrande. 8vo. Paris, 1868. From 

 the Author. 



Lepidopterological Miscellanies. By Coleman T. Robinson. 8vo. Pamph. 

 New York, 1869. From the Author. 



Modern Ideas of Derivation. Address of Principal Dawson, as President of 

 the Natural History Society of Montreal, May 18, 1869. 8vo. Pamph. From 

 the Author. 



An Examination of the Hypothesis of Central Heat in the Earth, and of the 

 assumed Connection of Volcanoes and Earthquakes therewith. By R. W. Has- 

 kins, A. M. 8vo. Pamph. Buffalo, 1869. From the Author. 



Prodromus of a Study of North American Fresh Water Algae. By Dr. Ho- 

 ratio C. Wood, Jr. 8vo. Pamph. Philadelphia, 1869. From the Author. 



First Annual Report on the Noxious, Beneficial and other Insects of tbe State 

 of Missouri. By Charles V. Riley. 8vo. Jefferson City, 1869. From the 

 Author. 



An Address on the Occasion of the Hundredth Anniversary of the Birth of 

 Alexander von Humboldt. By James P. Luse, A. M. 8vo. Pamph. New 

 Albany, Ind., 1869. From the Author. 



On some Elementary Principles in Animal Mechanics. By the Rev. Samuel 

 Haughton, M. D. 8vo. Pamph. From the Author. 



Catalogue and Synonymy of the Genera, Species and Varieties of Recent 

 Mollusca, described prior to January 1, 1867. By S. R. Roberts. Part iv. 8vo. 

 Philadelphia, 1869. From the Author. 



Mammalia of Massachusetts. By J. A. Allen. 8vo. Pamph. Cambridge, 

 1869. From the Author. 



Geological Report of the Exploration of the Yellowstone and Missouri Rivers. 

 By Dr. F. V. Hayden, Assistant. 1859-60. 8vo. Washington, 1869. From 

 the Author. 



La Teoria delle Associazioni Poligeniche applicata alio Studio dei Silicati. 



