202 The American Naturalist. [February, 
of Cypripedium spectabile, D. T. MacDougal. Notes on the Biological 
Survey, Mason B. Thomas. Notes on Sectioning Woody Tissues, 
John S. Wright. The Stomates of Cycas, Mason B. Thomas. Sym- 
biosis in Isopyrum biternatum, D. T. MacDougal. Our Present 
Knowledge of the Distribution of Pteridophytes of Indiana, Lucien 
M. Underwood. Concerning the Effect of Glycerine on Plants, John 
S. Wright. The Adventitious Plants of Fayette County, Robert 
Hessler. Bibliography of Indiana Ornithology, A. W. Butler. Bib- 
liography of the Batrachians and Reptiles of Indiana, O. P. Hay. 
Bibliography of Indiana Mammals, A. W. Butler and B. W. Ever- 
man 
= The President’s address by Dr. J. C. Arthur discussed “The special 
senses of plants.” 
NATURAL SCIENCE ASSOCIATION OF STATEN IsLAND, Nov. 11th, a 
1893. Mr. William T. Davis exhibited specimens of Anodonta fluvi 
tilis Lea, and read the following memorandum : 
Rediscovery of Anodonta fluviatilis on Staten Island.—During the 
past summer Anodonta fluviatilis was found in the Bull’s Head pond, 
Only empty shells were discovered, chiefly such as had been opened 
and their contents eaten by musk rats. Mr. Sanderson Smith has m- 
formed me that, as far as he remembers, the specimens admitted into 
the list of fresh and salt water shells of the Island, originally published 
in the Annals of the New York Lyceum of Natural History, m May, 
1865, and subsequently republished with a few changes, in our Prr 
ceedings, as Extra No. 5, March, 1887, came from the ponds r 
Clifton. None have been reported in many years, 80 the preset 
specimens from Bull’s Head are worthy of being placed on record. h 
Mr. Arthur Hollick exhibited specimens of drift bowlders, ca 
ing fossils, from Prince’s Bay, and read the following memorandum : 
A Recent find of Drift fossils at Prince’s Bay.—On the 
O. testudinaria Dal; Helderberg limestone, with Strophodonta aa 
Hall, S. varistriata Conr. Strophomena rhomboidalis Wahl. and Ur" 
oblata Hall; Oriskany sandstone, Spirifera arrecta 
grit, with Atrypa reticularis L. and fine specimens of some id be ; ‘ 
not determined. By far the larger part of the bowlders W 
hind and will receive further attention on some future ocean Drift : 
do not add any new species to our already published lists of 
ee ees Ae ape BO oe 
