NATURAL SCIENCES OF PHILADELPHIA. 
445 * 
1888 .] 
May 7, 1888. Upon insect fertilization of plants with special 
reference to the common chick weed and the glands found at the 
base of the stamens, by Mr. Thomas Meehan. 
May 7, 1888. Upon the formation of vessels in the corion and 
amnion, by Prof. Ryder. 
May 21, 1888. Upon the specific differences between Lampo- 
derma and Comatricha, by Harold Wingate. 
April 21, 1888. Upon Cribraria argillacea by Ur. George A. 
Rex. 
June 4, 1888. Upon two new species of Badhamia, B. reniformis 
and B. claviceps. 
June 4, 1888. Upon the pollen of Cyrpripedium acaule, by Dr. 
L. Brewer Hall. 
June 18, 1888. Upon the use of the parabolic reflector, by 
Harold Wingate. 
October 1, 1888. Upon the pollen of Cobea scandens, by Dr. G. 
A. Rex. 
October 1, 1888. Upon Bacillus tuberculosis, by Dr. G. A. Rex^ 
October 15, 1888. Upon Analine staining, by Prof. Ryder. 
October 15, 1888. Upon chicken and hog cholera, by Dr. J. 
Cheston Morris. 
November 5, 1888. Public lecture, by Prof. John Ryder upon 
the claims of biological research. 
November 19, 1888. Upon the methods of teaching topographi¬ 
cal histology, by Prof. Ryder. 
November 19, 1888. Upon the formation of cartilage and bone, 
by Prof. Ryder. 
The officers of the Section for the ensuing year are:— 
Director , 
Vice Director, 
Recorder, 
Corresponding Sec. 
Treasurer, 
Curator , 
Harold Wingate. 
John C. Wilson. 
Dr. Robert J. Hess. 
Dr. Charles Schaffer. 
Dr. Isaac Norris, Jr. 
Chas. P. Perot. 
Very respectfully submitted, 
Robert. J. Hess, M. D., 
Recorder. 
