60 Report OF THE BACTERIOLOGIST OF THE 
more resistant. For this reason it was thought best to study 
this germ and describe it in such a way that in future outbreaks 
we can determine whether we have to do with the same or a 
different germ. 
° 
EFFECT OF 240° F. (1153° Cc.) ON COMMERCIAL QUALITY. 
Some difference of opinion exists regarding the effect of 240° F. 
upon the texture of the pea and the clearness of the liquid. 
This was brought out in the replies from the canners. Twenty- 
nine canners report their experiences with this temperature. 
Eighteen have never observed bad effects, while eleven point out 
dangers, in different directions. One notes a tendency to scorched 
flavor in the smaller sizes and two speak of the bursting of the 
tender peas. Seven note that! in the mature peas there is trouble 
with the liquor becoming muddy if the heating is too long con- 
tinued. 
The cans which had been heated at the factory to determine 
the death point of the gas-forming germs gave us an excellent 
opportunity to judge of the effect of heating for various inter- 
vals upon the quality of the product. 
The Alaska peas were examined by three competent judges 
immediately after cooling with the following results: 
(1) The liquor was good and clear but seemed slightly brown 
in all cases except those heated but ten minutes. The others 
seemed all of the same shade. 
(2) The peas were darkened in all cases where heated more 
than ten minutes. This darkening increased in all with the length 
of exposure but was much more marked in the larger size (No. 4). . 
(3) There was a scorched taste in those heated thirty-five, forty 
and forty-five minutes which in the two longer intervals was suf- 
ficiently marked as to be objectionable in the market. No scorched 
taste was distinguishable in those heated thirty minutes or 
less. 
(5) There was a slightly scorched smell in cans heated thirty- 
five minutes or longer but not enough to be objectionable. 
At the end of eight months the cans heated but ten minutes 
had spoiled but samples of those remaining were submitted 
separately to eight men familiar with pea canning, three of whom 
were well posted as to the demands of the market. Their opinions 
——E——<x 
