Bouv^.J 
58 
[March 16, 
“ higher strata of the coal-measures ” at Marietta, Ohio, the de- 
scription of which would scarcely separate it from S. carbonarius, 
as the “ knots or points ” seen near the umbilicus sometimes occur 
in that species. In the Nova Scotia coal-field all the numerous 
varieties I have found appear to me to be referable to two types, 
S. carbonarius and S. arietinus, 1 the latter being more especi- 
ally characteristic of the upper part of the series. A careful 
comparison of these shells from the carboniferous of different 
parts of America is much needed, and would be greatly aided by 
the revision of the European species recently published in the 
Geological Magazine (1880) by Mr. R. Etheridge, Jr. 
General Meeting. March 16, 1881. 
The President, Mr. S. H. Scudder, in the chair. Forty-one 
persons present. 
After the reading of the records, the President announced the 
death of George Barrell Emerson, the Society’s second President, 
and one of its original members, three only of whom now survive 
him. The President referred briefly to Mr. Emerson’s scientific 
career, and read the following letter from Mr. T. T. Bouve : 
Although prevented by illness from being present with you, 
and notwithstanding my sketch of the History of the Society 
contains a pretty full account of Mr. George B, Emerson as a 
member of the Society, I cannot refrain from writing a few 
words on this occasion. 
In doing so I will only present a picture of the past, adding 
little exjiression of my feelings. 
When I became a member of the Society, which was in 1834, 
four years after its formation, it had taken possession of the hall 
up two flights of stairs, in the stone building next north of the 
Canadian Survey, 1869. 
