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areas from which London milk comes and of the fact that the majority of milk is pasteurised
before sale, it was decided at the end of 1959 that in future sampling should be concentrated
mainly on farm bottled milk. A representative number of samples of pasteurised milk,
however, is taken and submitted to a phosphatase test. If this test fails a biological test is
carried out.

* Milk curdled or guinea pigs died before completion of test.
† Samples from a residential school which has its own farm.
Milk purchased for use in Council establishments:
1957 1958 1959 1960
Liquid milk: samples taken by boroughs and county councils 1,162 947 910 589
Number found to be unsatisfactory 3 7 11 —
Dried milk: samples submitted to bacteriological examination 4 4 4 3
No samples contained more than 100,000 organisms per gramme, nor was staphylococcus aureus isolated.
Sanitary inspection
The public health inspectors dealt with the following matters in Council establishments:
1957 1958 1959 1960
Reports of infestation by a variety of pests 178 190 207 274
Visits and re.inspections involved 294 347 472 506
Inspections of school meals centres 420 375 362 341
Investigations of illness following consumption of school
meals 15 12 7 8
Occasions when the meal was found to be the cause 2 3 2 2
Blind and partially.sighted persons
During the year, 1,758 examinations—17 more than in the previous year—were made in
connection with certification under the National Assistance Act, 1948, of blind or
partially.sighted persons and 44 persons were found to be neither blind nor partially.sighted.
In addition, 439 certificates were accepted from other local authorities, hospitals and
private ophthalmologists—69 more than in the previous year. The percentage of new
registrations recommended to obtain treatment was 57.7 per cent, compared with 57.0 per
cent, in 1959.
The results of examinations of persons newly registered during the year are given in
tables (i) and (ii).
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