Transactions of the Chicago Academy of Sciences. Vol. 1, Part 1. From the 

 Academy. 



Transactions of the American Entomological Society. Vol. 2, No. 1. From 

 the Publication Committee. 



Proceedings of the Essex Institute. Vol. 5, No. 4. From the Institute. 



Proceedings of the Boston Society of Natural History. Vol. 1 1, pj). 289 — ^486. 

 From the Society. 



Condition and Doings of the Boston Society of Natural IIistc)^}^ Ma}"^ 1868. 

 From the Society. 



Annual of the Boston Society of Natural History. 1868^69. No. 1. From the 

 Society. 



Entomologist's Monthly Magazine. June and July, 1868. From the Conduc- 

 tors. 



American Naturalist, Vol. 2, No. 5. From the Editors. 



Catalogue de la collection de Cicindeletes de M. LeBaron de Ohandoir. From 

 Jno. L. LeConte, M. D, 



A Guide to the Study of Insects, by A. S. Packard, Jr., M. D. Part 1. From 

 the Author. 



The Classification of Animals based on the Principle of Cejjlialization, by 

 Jas. b. Dana. Nos. 1 — -3. From the Author. 



On two American species of the genus Hydrachna, by J. D. Dana and J. 

 Whelpley. From the Authors. 



On the Homologies of Insects aud Crustaceans, by Jas. D. Dana. From the 

 Axdhor. 



A Review of the Classification of Crustacea, with reference to certain Princi- 

 ples of Cephalization. By Jas. D. Dana. From the Author. 



Deseriiotion of a new species of Culicidse, by Baron R. Osten Saeken. From 

 the Author. 



On the N. A. Platypteryginse, by Aug. R. Grote. From the Author. 



Descriptions of new N. A. Coleoptera, by Jno. L. LeConte, M. D. From tlie 

 Author. 



Catalogue of a collection of Mexican Hymenoptera, made by Prof. F. Sumi- 

 chrast, by E. T. Cresson. From the Author. 



Notes on the Habits of certain species of Mexican Hymenoptera, by Prof. F. 

 Sumichrast. From the Author. 



The following papers were presented for publication in tlie Tranmc- 

 iions : — 



" On the Synonymy of certain species of N. A. LepiJoptera, by 

 Aug. R. Grote." 



" Descriptions of N. A. Lepidoptera, No. 4, by Aug. II. Grote and 

 C. T. Robinson." 



"Descriptions of New Diurnal Lepidoptera, by Wm. H. Edwards." 



" Catalogue of the Mutillidte of North America, by Chas. A. Blake." 



"Catalogue of Coleoptera from South Western Virginia, by Geo. H. 

 Horn, M. D.'' 



"Descriptions of new Coleoptera from the Pacific District of the Uni- 

 ted States; by Geo. H. Horn, M. D." 



