38 The American Naturalist. [January, 
forms on the surface of the agar a smooth, bluish-white, in- 
tensely shining growth, which does not reach the wall of the 
tube even after weeks. After 8 to 10 days little vesciculate 
projections appeared along the stab. 
(4) Potato, ete—Organism grows well upon potato, forming 
after 36 hours a dirty yellow, slimy covering, the surface of 
which is granular. Cultures several days old sent forth an in- i 
tense rotten odor. 
(5) Animal Fluids.—No mention of specific sorts. See (IT) 2 (5). 
(6) Vegetable Juices—No mention of any trials. 
(7) Salt Solutions and other Synthetic Media—The organism | 
grows well in Cohn’s nutrient solution, and in sugar solutions, 
etc. In sugar solutions, with addition of sodium phosphate ! 
and peptone, a fine growth, but no butyric acid. 
(8) Relation to Free Oxygen—Aerobic. No special experi- 
ments, but from the behavior of the agar stab cultures the 
bacillus is probably also facultative anaerobic. 
(9) Reducing and Oxidizing Power—No statement. 
(10) Fermentation Products, and other Results of Growth : 
(a) Gas Production.—No statement. 
(b) Formation of Acids—No odor of butyric acid could be — 
detected in any of the cultures. No mention of any other acid. — 
(c) Production of Alkali—No statement. 
(d) Formation of Pigment.—Organism dirty yellow on potato. — 
(e) Development of Odors.—Causes a rotten smell in the host — 
plants, and an intensely putrid odor on potato. Chemical — 
nature of the odor not determined. No smell of butyric acid. — 
(£) Enzymes.—No statement. Cell walls are softened and — 
destroyed, and protoplasm is consumed in the presence of this — 
organism. 
(g) Other Products—No mention of any. 
(11) Effect of Dessication—No statement. 
(12) Thermal Relations : 
(a) Maximum for Growth—Not determined. 
(b) Optimum for Growth—Not determined. 
(c) Minimum for Growth—Not determined. 
(da) Death Point—Not determined. 
(13) Relation to Light—No statement. 
