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Proceedings of Scientific Societies. > 91 
plateaux flanking the mountains; (3) The rivers carrying the waste 
of the land into the ocean ; (4) The lakes, temporarily interrupting 
the transportation of waste to the ocean and retarding the action of 
the rivers; (5) The shore-line where the land dips under the sea. 
—Professor von Cienkowsky, the well-known student of the 
lower animals, died October 7th, 1887, in Leipzig. e was born 
October 13th, 1822, in Warsaw, and at various times held a pro- 
fessor’s chair in Jaroslaw, St. Petersburg, and Odessa. At the time 
of his death he was a member of the faculty of Charcow. 
—Recent Deatus.—Robert Francis Logan, an entomologist, 
at Spylaw, near Edinburg, July 28, 1887. Pierre Milliére, 
entomologist, aged seventy-four, at Cannes, May 29, 1887. 
PROCEEDINGS OF SCIENTIFIC SOCIETIES. 
ACADEMY oF NATURAL SCIENCES OF PHILADELPHIA.— May 
24, 1887.—Dr. Chapman presented “ Notes on the Anatomy of 
a rotifer, originally described by Hudson from specimens obtained 
in Wiltshire, England. Dr. Leidy’s specimens were from a duck- 
pond, sewage fed, below this city. The animal is viviparous and 
Swarms inthe pond in company with Daphnia. It has a single eye 
anda pair of lateral conical horns. 
June 14, 1887.—Prof. H. F. Osborn presented a paper upon the 
“Structure and Classification of Mesozoic Mammalia, and C. H. 
Eigenmann “Notes on the Specific Names of Certain North Ameri- 
can Fishes.” 
June 21, 1887.—Mr. Thos. Meehan stated that Chionanthus, 
though usually described as having perfect flowers, is on the borders 
of dicecism, having impotent anthers with a perfect pistil on one 
plant, and polliniferous anthers aud an imperfect pistil on another. 
is is the rule. The male plants are the more abundant. The 
male flowers seem only to be visited by the pollen-eating Thrips, and 
are therefore anemophilous. | 
August 9, 1887.—A letter from Miss A. Fielde, Swatow, China, 
describing an aquatic larva and its case, was read. The ani is 
Stated to be near Hydropsyche. 
S August 16, 1887.—Prof. J. A. Ryder presented a paper upon the 
Homologies and Early History of the Limbs of Vertebrates.” 
AMERICAN SocreTy oF NATURALISTS.—The annual meeting 
(1887) was held at New Haven, Conn., in the Lecture-Room of the 
