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reports which are transmitted to them. Up to the present, no
consistently unsatisfactory results have been obtained, improvements
having been effected in every case, following the transmission
of a notice stating the result of the examination. It has been
necessary to purchase certain additional apparatus to continue the
work of examination in a satisfactory manner, and we are now
able at the laboratory to carry out all the routine tests recommended
by the Ministry r>f Health.
Summary of Work carried out during 1935.
Total number of samples examined .. . . .. 246
Samples examined for total bacterial count .. .. 244
Samples examined for presence of bacillus coli .. .. 244
Samples examined for presence of tubercle bacilli . . 126
Samples of Non-designated Milks, including Raw Milk,
Pasteurised (Non-designated) Milk, Sterilised Milk
and Irradiated Milk, examined . . .. . . 145
Percentage of satisfactory results as regards total bacterial
count .. .. .. .. .. .. 100%
Percentage of satisfactory results as regards b. coli content 86.8%
Average bacterial count .. . . .. .. 37,122
Samples of Designated Milks examined .. .. 99
(Certified Milk .. .. .. .. 20
Grade A (Tuberculin Tested) Milk .. 28
Grade A Milk .. .. .. .. 4
Grade A (Pasteurised) Milk .. 8
Pasteurised Milk . . . . .. 39)
Certified Milk.
Percentage of samples satisfactory in every respect.. 95%
Average bacterial count .. .. .. .. 10,701
Grade A (Tuberculin Tested) Milk.
Percentage of samples satisfactory in every respect.. 96.4%
Average bacterial count .. .. .. .. 23,804
Grade A Milk.
Percentage of samples satisfactory in every respect.. 100%
Average bacterial count .. .. .. .. 15,836
Grade A (Pasteurised) Milk.
Percentage of samples satisfactory in every respect.. 100%
Average bacterial count .. .. .. .. 8,917
Pasteurised Milk.
Percentage of samples satisfactory in every respect.. 94.8%
Average bacterial count .. .. .. .. 29,785
No tubercle bacilli were found in any of the 126 samples
examined for this purpose.
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