M 77
reported, and it will There were no cases This is due to the
302. A large increase in the amount of this work is to be noted that no serious amount of adulteration was detected. of watered milk but many cases of exhausted tea occurred. demand for a very cheap tea, which is supplied by drying used tea-leaves obtained from Chinese tea-houses and restaurants.
303. The phosphatase test for pasteurized milk was used as a routine check on milk supplied to the public.
(c) Water & Sewage Samples.
Routine analyses of the public supplies were carried out during the year.
305. Samples of water from water boats were examined periodically for presence of sea-water. This contamination occurred much less frequently than in 1938.
(d) Biochemical Examinations.
306. There has been a very large increase in this branch of work, as a result of which it has been decided to engage another junior assistant.
Table LXI.
Blood for blood urea nitrogen137 samples. sugar105 calcium6 27 van den Bergh tests11 sodium chloride1 J J Calculi Fluid taken from cyst1 A black lump from cyst Faeces1 Cerebrospinal fluid1 Urine12 1 Gastric contents Blood samples in connexion with air raid precaution tests22 Urine samples in connexion with air raid precaution tests.2 J 102 "629 A112 ,,48307. In order to determine the price to be paid to the contractors, routine tests were carried out of all consignments of coal supplied to government. Government departments generally made more use of this laboratory than in previous years.
308. Fumigation of books by means of hydrocyanic acid gas was again carried out in several government buildings.
M 77
reported, and it will There were no cases This is due to the
302. A large increase in the amount of this work is to be be noted that no serious amount of adulteration was detected. of watered milk but many cases of exhausted tea occurred. demand for a very cheap tea, which is supplied by drying used tea-leaves obtained from Chinese tea-houses and restaurants.
303. The phosphatase test for pasteurized milk was used as a routine check on milk supplied to the public.
(c) Water & Sewage Samples.
Routine analyses of the public supplies were carried out during the year.
305. Samples of water from water boats were examined periodically for pre- sence of sea-water. This contamination occurred much less frequently than in 1938.
(d) Biochemical Examinations.
306. There has been a very large increase in this branch of work, as a result of which it has been decided to engage another junior assistant.
Table LXI.
Blood for blood urea nitrogen
sugar
137 samples.
105
calcium
6
27
van den Bergh tests
11
sodium chloride
1
J
J
Calculi
Fluid taken from cyst
A black lump from cyst
Faeces
Cerebrospinal fluid
Urine
12
1
}}
1
Gastric contents
Blood samples in connexion with air raid precaution tests
Urine samples in connexion with air raid precaution tests.
(e) Materials from Government departments for testing.
22
2
J
102
"
629
A
112
,,
48
307. In order to determine the price to be paid to the contractors, routine tests were carried out of all consignments of coal supplied to government. Government departments generally made more use of this laboratory than in previous years.
308. Fumigation of books by means of hydrocyanic acid gas was again carried out in several government buildings.
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