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89
5. Very numerous motile and non-motile organisms.
(Gram stain—Gram negative bacilli preponderate).
Cultural Appearances : Plate is covered with a bacillus of
the B. Mesenteriae type.
Commentary :
In neither case has evidence of the presence of organisms
likely to cause epidemic illness been obtained. Taking
the whole of the observations made into consideration, I
consider that scraping No. 1 is fairly good, and that
scraping No. 3 affords evidence of a lack of cleanliness
which, if continued, might be a danger to the public
health.
No. 2 Ice Cream—27th July, 1922.
Direct Films :
1. Yeasts +
2. Organisms of the B. subtilis type +
3. Gram negative bacilli + +
4. Gram negative cocci (? cocco-bacilli) + + + +
Quantitative estimation :
One c.c. contains 64 million organisms.
MacConkey plate cultures at 37 degrees C.
A slight growth only has been obtained, including a few
non-lactose fermenting organisms. Sub-cultures from
these latter give none of the re-actions of B. Gaertener
nor of the B. Coli groups.
No. 4—Ice Cream—27th July, 1922.
Direct Films :
1. Gram positive diplococci +
2. Gram negative bacilli + +
3. Gram negative cocci (? cocco-bacilli) + + + +
Quantitative estimation :
One c.c. contains 500,000 organisms.
MacConkey plate cultures, at 37 degrees C. :
No growth has been obtained after 48 hours.