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14
VETERINARY INSPECTION OF COWS AND OTHER
BOVINE ANIMALS.
Periodical inspection of dairy animals by a competent
Veterinary Surgeon is an important item in the prevention of
tuberculosis in cows and in milk.
FISH FRYING.
There are five establishments in Harrow carrying on this
business under the Bye-laws regulating offensive trades
(Section 112 of the Public Health Act, 1875, as amended by
Section 51 of the Public Health Act, Amendment Act, 1907).
No complaint was made concerning any of these establish
ments.
WATER SUPPLY.
Analyses of the Public Water Supply (Colne Valley
Water Co.) were made four times during the year and showed
that the samples of water were satisfactory from the point of
view of organic matter. This water is fairly soft.
The following is the last report received from the
Analyst:—
Parts per Grains per
(1). Chemical— 100,000. gallon.
Total solids (dried at 120° c.) 24.3 17.0
Combined chlorine 2.10 1.47
equivalent to Na C1 3.47 2.43
Nitric nitrogen 0.60 0.42
Nitrous nitrogen Nil Nil
Ammoniacal nitrogen Nil Nil
Albumenoid nitrogen 0.0054 0.0038
Oxygen absorbed in 4 hours at 27 c. 0 040 0.028
Lead or Copper Nil Nil
Temporary hardness (equivalent to Ca Cos) 6.8 4.8
Permanent hardness 8.5 5.9
Total hardness 15.3 10.7
Bacteriological.
(1). Quantitative—
The average number of organisms, producing
visible colonies on gelatine plates incubated
at 20° C. for three days, is found to be 15 per c. c.
The average number of organisms, producing
visible colonies on agar plates incubated
at 37 5° C. for 2 days, is found to be 6 per c. c.