55 



tiosj 



States. 



New BruHswick. 

 Nova Scotia . . . , 



Canada 



Maine 



Rhode Island. . . 

 New Hampshire. 



Vermont 



Massachusetts. . 

 New York 



New Jersey 



Pennsylvania . . 



Delaware 



Maryland 



Virginia 



North Carolina , 

 South Carolina. 



Alabama 



Greorgia 



Florida 



Mississippi .... 

 Tennessee .... 



Louisiana 



Kentucky 



Ohio 



Indiana 



Missouri 



Michigan 



IlKnois 



"Wisconsin .... 



Minnesota 



Iowa 



Texas 



Names. 



Mr. Gesner 



Dr. C. T. Jackson and Francis Alger 



Mr. Logan 



Dr. Jackson 



Dr. Jackson 



Dr. Jackson 



Prof. C. B. Adams 



Pres. Hitchcock 



Profs. Hall, Emmons, Mather, Vanuxem, Beck and Dr. 



De Kav 



Prof. H. b. Rogers 



Prof. H. D. Rogers 



Prof. J. C. Booth 



Dr. Ducatel 



Prof. Wm. B. Rogers 



Profs. D. Olmsted and E. Emmons 



Prof. Tuomey 



Prof. Tuomey 



Profs. Olmsted and Cotting 



Col. B. L. C. Wailes and Prof. Millington. 



Dr. Troost 



Prof. Forshey 



Prof. Mather (reconnaissance only) 



Prof. Mather 



Dr. D. D. Owen (reconnaissance) 



Drs. Houghton and Jackson; Messrs. Foster and Whitney. 



Dr. Norwood 



Dr. D. D. Owen 



Dr. D. D. Owen 



Dr. D. D. Owen 



Dr. F. Roemer 



Explorations by individuals. — At the request of the superintendent of 

 the coast survey, Professor Agassiz last winter visited the reefs of Florida, 

 for the purpose of making such examinations of the coral formations as 

 might furnish information of use to the survey. In this he was highly 

 successful, as well as in the secondary object of making collections of 

 natural history. Many new species of animals were added to the Ameri- 

 can fauna, especially of inrertebrata, as annelida, &c. Numerous fishes 

 were also obtained, including several undescribed, and in a species of 

 Sparodactylus the presence of the reptilian family of geckotyda^ was 

 for the first time determined in the United States. The geological results 

 will be published as an appendix to the report of the superintendent of the 

 coast survey for 1851, 



Mr. L. F. Pourtales, while engaged on coast survey duty in Florida, 

 paid especial attention to the radiata, and procured many species, some of 

 which he has kindly presented to the Institution. Among them are Holo- 

 thuria, Synapta, &c. 



Mr. W. Stimpson, of Boston, last summer visited the coast of Maine, 

 and made important collections in zoology. Many new species of mol- 

 lusca, radiata and annelida were obtained, and the existence of Myxine 

 substantiated for the first time in North America, by the acquisition of sev- 



