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Curators. 



Samuel Cabot, Jr., M. D. Of Ornithology. 



Thomas T. Bouve, Geology. 



Francis Alger, Mineralogy. 



Waldo I. Burnett, M. D. Entomology. 



Samuel Kneeland, Jr., M. D. Comparative Anatomy. 



William Stimpson, Concliology. 



Horatio R. Storer, Herpetology. 



Thomas M. Brewer, M. D. Oology. 



Silas Durkee, M. D. Ichthyology. 



Charles J. Sprague, Botany. 



William O. Ayres, Crustacea and Radiata. 



Mr. Bouve exhibited the eggs of a Skate (Raia ocellata) 

 containing the young fish with the yolk sac attached to it. 



Dr. Gould presented a small collection of East India 

 plants. 



Dr. J. M. Warren presented a specimen of Horned Frog 

 (Phrynosoma cornuta) from California, and a specimen of 

 Holacanthus, from Newport, R. I. 



Mr. Hermann J. Warner was elected a Resident member 

 of the Society. 



May 19, 1852. 



The President in the Chair. 



The Secretary read in behalf of Dr. Burnett, a paper on 

 the Anolius Carolinensis or Chameleon of the Southern 

 States. It contained notices of the habits of this animal, 

 with an account of a microscopic examination of the skin 

 and the structure on which its change of color depends. 



Mr. H. R. Storer read a Medico-botanical paper on the 

 Anonaceae. 



