M 70
Brought forward........ 1,752
Medico-legal examination of clothing, knives, etc.,
for blood, (Precipitive Test),
Examination of rats for plague,...........
Miscellaneous,
- 36 86,114
6
Total,..
87,908
EXAMINATION OF RATS.
23 were
The results are given in Table I. The total number of rats examined was 86,114 as compared with 90,261 in 1916. found to be plague-infected (48 in 1916).
BACTERIOLOGICAL EXAMINATION OF WATER.
The three chief water supplies of the Colony (Kowloon, Tytam and Pokfulum) were examined quarterly and the results are given in Tables II, III, and IV.
In every case the sample was taken at its source, i.e., either directly before or directly after filtration,
The methods used in carrying out the examinations were the same as those described in my "Report on an Investigation of the Pokfulum Water Supply" (No. 20 of 1911).