PROCEEDINGS OF THE CLUB 
MEETING oF Marcu 3, 1931 
The meeting was called to order by President Sinnott at 8:15 
P.M. at Columbia University, Schermerhorn Extension, with 125 
members present. 
An invitation was extended to the Torrey Club to meet at the 
Brooklyn Botanic Garden on Wednesday afternoon, March 18. 
The invitation was accepted by the club. 
A special program of exhibits of educational material and 
demonstrations of research work in progress had been arranged 
by Dr. R. C. Benedict and others in the various laboratories of 
Schermerhorn Extension and in the Greenhouse. For the sake of 
a record, as well as to show the great latitude of subjects presented, 
the list is given herewith in full. 
EXHIBITS AND DEMONSTRATIONS 
l. Teaching devices and helps : 
. A laboratory study of variation. R. C. Benedict. 
B. Common vegetables in the classroom. R. C. Benedict. 
C. Models made by pupils. Frances Schiller. 
D. Diagrams for testing and drilling. Gertrude R. Twomey. 
E. Collections of cereals. G. M. Reed. 
F. Exhibit of a model of mitosis. Olga Hingsburg. 
Experiments with the cabbage group. R. C. Benedict. 
Histological differentiation among species. J. E. Adams. 
Demonstration of some brine-loving algae. T. E. Hazen. 
Forcing pitcher plants for class work. T. E. Hazen. 
Demonstration of the importance of oxygen for plant growth. 
Barnard College Department of Botany. f 
Bryophyllum crenatum for study of vegetative reproduction. 
Barnard College Department of Botany. 
Grafting Coleus as a laboratory exercise. Barnard College, 
Department of Botany. ; 
pening fern sporangia by means of glycerine. S. C. Bausor. 
10. Stone cells in fruits. S. C. Bausor. 
l. Thallus variations in Marchantia. Irene Hackett. _ 
12. A and bud formation in moss protonema. Mildred Mc- 
usland. 
13, Theoretical considerations of cell shapes. E. B. Matzke. 
4. Flower Variations in the chickweed, Stellaria. E. B. Matzke. 
15, Demonstrations in general elementary botany. E. B. Matzke. 
- Slime mould sporangia. 
B. Pilobolus and its light response. 
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