1887] Proceedings of Scientific Societies. 495 
The collaborators will be numerous, embracing such well-known 
names as Cohn, Eichler, Luerssen, Pfitzer, etc., thus insuring a 
thoroughly reliable work. It is estimated that the whole work 
will make some five thousand pages, illustrated with several 
thousand wood-cuts. It will be published in parts of forty-eight 
pages each, at a subscription price of a mark and a half each 
wn-Séquard, of Paris, has been elected President of 
the Feach Zoological Society, in the place of the late Paul 
Bert. 
PROCEEDINGS OF SCIENTIFIC SOCIETIES. 
Boston Society of Natural History.—April 6, 1887.—Dr. 
Edward G. Gardiner spoke of the development and homologies 
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read the results of his studies of fossil batteries Fossil but- 
terflies, he said, are very rare. About thirty thousand specimens 
of fossil insects are now in collections, the celebrated beds at 
Florissant, Colorado, furnishing about half of these. Of this 
large number only sixteen are butterflies, nine of these being 
from the European tertiaries and seven from Florissant. These 
sixteen belonged to three existing families, the American species 
all being members of the Nymphalidz, while the European were 
divided among this family and the Hesperidz and Papilionide. 
The European species showed many resemblances to the forms 
found in the East Indies and sub-tropical America to-day, while 
the American specimens were more American in relationship. 
` show the structure of antenne, palpi, legs, and wing-nervures, 
but it was possible to detect the pattern of the color-markings, 
and even to draw some of the scales on the wings. Suggestions 
as to the possible food-plants, based on the present habits as well 
as on contemporaneous flora, were given. 
esex [Mass.] Institute.—April 13, 1887.—The paper of 
Tan emer ing was upona trip to Alaska by William Chase. It 
was illustrated by lantern-views, and detailed, sg ees other things, 
the appearance of the Muir Glacier, of Glacier 
Brooklyn Entomological Society—March 1, 1887.—Mr. 
A. C. Weeks described the pee of the moth Tarache 
