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cells or blood corpuscles, it may be that the streptococci
also came from the manure. As the deposit obtained was so
small, the milk may have been through a very fine strainer,
which has removed all but the bacteria.
Bacteriologically the milk is unclean."
As a result of this analysis a further inspection was
made of the cows, and one cow was found to have a quarter
of its udder to contain an indurated mass.
Mr. Gray, the veterinary surgeon, examined it with
me, and material from this quarter was sent for analysis
with milk from the other quarters. Dr. Thresh's report was
as follows:—
" Upon analysis, it gave results as under:—
Specific Gravity 1034.1
Fat 1.2 percent.
Solids, not fat 8.93 per cent. containing 77 per cent. ash
Total solids 10.13 per cent.
This corresponds more to skimmed or separated milk
than to ordinary milk. It is woefully deficient in fat.
The bacteriological results were as follows:—
Bacteria per c.c. growing on gelatine in 4 days, 20,500.
Do. do. growing on square inch in 2 days, 20,000.
The B. coli absent in one c.c., present in 5 c.c.
The B. enteritis sporogones absent in 10 c.c., present in
100 c.c.
Upon standing there was no visible deposit.
When centifugalised a mere trace of deposit, in which
were found bacteria, but no streptococci or tubercle bacilli.