19 
Eighteen persons present. 
Mr. Britcher reported the taking of brown hydras, and of a 
tree toad, Hyla versicolar, during the summer. 
Dr. Beauchamp called attention to the opportunity afforded 
by the bone implements among the Indian relics for listing the 
extinct mammals of the county. 
Dr. E. C. Quereau gave the address of the afternoon en- 
titled : 
THE GEOLOGY OF MARTHA’S VINEYARD. 
OcTOBER 21, 1808. 
TWENTY-FOURTH REGULAR MEETING. 
The president, Dr. C. W. Harerrt, in the chair. 
Fifteen persons present. 
The report of the council recommended : 
(1) The payment of certain bills contracted in connec- 
tion with the meeting of the Microscopical Society. 
(2) The election to active membership of A. A. Tyler, and 
S. G. Rogers. 
(3) The election to associate membership of Dr. Mary E. 
Wright, Miss M. E. Hill, and Miss M. Rosenthal. 
(a0) Ihe transfer of the name of Dr. S. G. Harris to the 
corresponding membership list. 
~The report was adopted, the bills ordered paid, and the can- 
didates elected by ballot. 
The first lecture of the afternoon was by Mr. H. W. Britcher 
entitled : 
NOTES ON THE BIOLOGY OF BRANCHIPPUS 
POND: 
