New YorkK AGRICULTURAL EXPERIMENT STATION. 185 
A GOMPARISON OF THE ENZYM PRODUCED BY BACIL- 
LUS CAROTOVORUS, WITH CYTOLYTIC ENZYMS 
FROM OTHER SOURCES. 
CYTOLYTIC ACTION BY SOFT-ROT BACTERIA FROM OTHER 
SOURCES. 
In the course of these studies upon the cytolytic enzym of 
the carrot-rot bacillus comparisons have been made with the 
various Other strains of soft rot organisms described in Part 
I of this discussion, p. 100. In order to make this clear we will 
summarize the list, which includes 45 strains, as follows: — 
Three strains of cabbage-rot bacilli isolated in Vermont by 
F.. R. Pember in 1899. 
Twenty-three other strains of cabbage-rot bacilli isolated in 
Vermont by W. J. Morse in 1901. 
One strain of turnip-rot bacillus isolated by L. P. Sprague 
in Vermont, 1903. 
Twelve strains of soft-rot bacilli secured by Harding and 
Stewart in New York, of which one was associated with the 
soft rot of Amorphophallus simlense and the other eleven were 
from the soft rot of cabbage. ; 
Six other soft-rot organisms from various sources, as fol- 
lows: Townsend’s calla rot, Bacillus aroideae; Harrison’s 
cauliflower rot, Bacillus olereaceac; van Hall’s two iris-rot 
organisms, Bacillus omnivorous and Pseudomonas  iridis; 
Spieckermann’s kale-rot organism (Bacillus), and Potter’s 
turnip-rot organism, of which the strain we had was also a 
Bacillus. 
Forty of these forty-five strains, with three others, were 
studied* in detail by Messrs. Harding and Morse, the details of 
their studies being related in Part I of this discussion. It will 
* Their studies did not include the following: Pember’s R., Pseudomonas 
iridis, nor the New York organisms O. 1 IT 6 c, O. 1 II 6 a, and the bacillus 
from Amorphophallus. 
