424: Selected Articles in Scientific Serials. [| May, 1881. 
He asked for information regarding the use, by birds, of the spin- 
ning work of spiders in the construction of their nests. Dr. 
Konig spoke on Beegarite. 
ov. 16.—Mr. Meehan remarked on the sexual organs of 
Andromeda. Mr. Potts gave the names of the new species of 
fresh-water sponges collected in Fairmount Park, and spoke on 
the characters of some other forms observed by him. 
Nov. 23.—Dr. McCook spoke on the enemies of spiders. 
Nov. 30.—Mr, Ryder gave an account of the development of 
Mya arenaria. Mr. Meehan spoke on the germination of seeds. 
Dr. Parker remarked on the morphology of the occipital lobes of 
the brain. Dr. Dercum spoke on the termination of nerve-fibers. 
Dec. 7——Dr. McCook spoke on the protective instincts and. 
industries of the spiders. Mr. Potts remarked on the feeding 
habits of ants. 
Dec. 14.—Professor Allen spoke on the phalanges of the bats 
wing. Mr. Ryder described Zygonopus whiter, a new myriapod 
from a cave in Virginia. 
Jan. 4, 1881.—Dr. Leidy spoke on the use of rhizopods as food 
for fishes. 
Jan. 25.—Dr. Horn spoke on the mouth organs of the Cara- 
bide and their value in classification. 
eb. 1.—Mr. Ryder remarked on Protozoa of Europe and the 
United States. ; 
Feb. 8.—Mr. Meehan remarked on the lack of trees on pral- 
ries. Mr. Bassett spoke on Hymenoptera producing galls. 
eb. 22.—Dr. McCook remarked on analysis of honey and 
development of abdomen of ants, Dr. Kite spoke on the skulls 
of hornbills. 
March 1.—Mr. Potts made observations on Spongilla. Profes- 
sor Heilprin spoke on geological classification. 
Boston Society oF Natura Hisrory, March 16.—Dr. W- 4: 
Farlon made some observations on the plants of Bermuda, and 
Professor N. S. Shaler discussed the advance and recession of gla- 
ciers. : 
American GrocrapuicaL Society, March 25.—Lieut-Com 
mander H. H. Gorringe, U. S. N., read a paper entitled, A cruise 
along the northern coast of Africa. 
:0: 
SELECTED ARTICLES IN SCIENTIFIC SERIALS. 
Tue Grorocicat Macazine.—March. On the traveled blocks 
of the Upper Punjab and a supposed Glacial period in India, by 
A. B. Wynne. Prehistoric Europe and the Cornish Forest beds, 
by W. A. E. Assher. “ Laccolites,” by G. H. Kinahan. — 
Tae Canapian Entomotocist.— January. Observation® . 
several species of Aigeriode inhabiting the vicinity of Buffa x 
N. Y., by D. S. Kellicott. Description of the preparatory stage 
of Papilio philenor (Linn.), by W. H. Edwards. | 
