1877.] 259 [Meetings. 



Letters were read from Prof. Carl Zittel, acknowledging 

 his election as Corresponding Member," and from Prof. A. 

 v. Kolliker, Sir J. D. Hooker and Mr. George Bentham, 

 acknowledging their election and accepting Honorary Mem- 

 bership. 



Dr. T. M. Brewer exhibited a number of additions to the 

 New England collection of birds, including gifts from 

 Messrs. E. A. and O. Bangs, C. B. Corey, F. R. Loring and 

 Wm. B. Greene ; also a young Blue Heron {Florida cce- 

 ruiea), in white plumage, procured by exchange from Mr. 

 Morse, who shot it in Cohasset twenty-five years ago ; and a 

 duck (Dendrocygna fulva), an inhabitant of W. Indies and 

 C. America, obtained by Mr. Morse in San Francisco. The 

 thanks of the Society were voted to the first mentioned gen- 

 tlemen for their gifts. 



General Meeting. December 5, 1877. 



The President, Mr. T. T. Bouve\ in the chair. Twenty- 

 one persons present. 



Mr. S. H. Scudder showed some drawings of interesting 

 Articulates from the carboniferous rocks of Illinois. The 

 first represented a species of White Ant, showing a wing 

 without reticulation ; the second the terminal segments 

 of a crustacean belonging to a genus allied to Dithyro- 

 charis ; but which he had at first taken for some extraor- 

 dinary form of insect. 



Prof. A. Hyatt discussed the evolution of the races of 

 Planorbis multiformis, a species of mollusk from a tertiary 

 lake bed at Steinheim, in the Wurtemburg Alps. 



A letter from Prof. Albert Gaudry acknowledging his elec- 

 tion as Corresponding Member was read. 



