158 BOTANICAL GAZETTE. 
thinks this a provision for self-fertilization. But bees undoubt- 
edly carry the pollen from one head to another. A considerable 
discussion followed, in which Prof Beal suggested the expel 
ment of covering up the heads to see if any seed would set 
Dr. Gray thought they would probably form, for many flowers 
The club met at the usual hour Tuesday morning. Mr. Pe ¢ 
H. Dudley, of the Torrey Club, exhibited some fine photomicro” — 
graphs of wood. ‘3 
Dr. Geo. Vasey, of the U. S. Department of Agriculture; | 
its some interesting “Notes on the Vegetation of the Arid 
ains, 
: Prof. Bessey spoke of the “Curvature of the Stems of Cor 
ifers,” having seen branches of Austrian pine bend that were f 
one, two, and even three years old. 
