| mel 
Sa 
— 
=~ 
18. 
19. 
20. 
41, 
N 
N 
23 
> ea 3. A 9, 
Ss Nr 
: es a ie calcium and potassium nitrates. R 
92 
C. Aspergillus—cultures differing in color 
D. Monilia sitophila—habit and spore formation. 
E. Rusts—demonstrations and models. 
F. Root pressure in Fuchsia. 
Wood and leaf specimens of Haematorxylon compe 
from which haematoxylin was formerly obtained. W. C. 
Genes of Achras zapota from which chicle is obtained, 
blocks of chicle, machetes and gouges employed in tapping in 
British Honduras, together with Pestalozzia diseases. J. S. 
Karling and Estelle M. Hazard. 
Demonstration of ilieraically simulated organisms. Illo Hein. 
Demonstration of various smuts of cereal grains. Laura 
Kolk. 
Demonstration of mosaic disease of tobacco. Bessie Goldstein. 
Cryptogamic Laboratory: frieze of the Fox paintings of 
mushrooms with the Gibson collection of original drawings 
hanging beneath; also, a simple Wardian case for laboratory 
plants and an algal aquarium. 
. Exhibit of fungi parasitic on man. Laboratory of Medical 
Mycology and n of Dermatology, College of Physi- 
cians and Surgeons. 
ae Variations in r TE iciin RA. Har 
arper 
ee as applied to high school teaching. C. A. 
. Cultures of the fungus C ae which parasitizes Or- 
chids in the tropics. Sylvia O. Se 
. Cultures of bacteria which cause Back Zot of cabbage and in- 
fected cabbage specimens. Dorothy 
. Demonstrations of fixed and stained aoe) preparations by the 
members of the Cytology Class. G. M. —— 
. Dissected conifer embryos. G. M. Watkin : 
. Formation of starch grains from body of ‘chiorepiae in Pel- 
lionia. G. S. Avery. 
: Anatomy of the tobacco stem. G. S. Be 
. Anatomy of grain seedlings. G. S. Ave 
- Demonstration of fern prothallia. i 1. Perry. 
. Exhibit of Polygonaceae. J. T. Perr 
Battery of water stills with quartz condensers. Man L. Mann. 
. Zinc stimulation of Aspergillus. Mar L 
‘ ce unessential for growth of Aspergillus ie 
an 
. Fluctuation of leaf temperature with changing light intensity: 
Harold H. Clum 
- Relative effects of red and blue light on phototropic bending: 
Robertson Pra bert- 
o 
son Prat 
