493
13. Mineralogical work has been gradually increasing, and as in connection with it questions in economic Geology have arisen, some Geological appliances and reference mater- ials have been ordered from England.
MISCELLANEOUS.
14. A sample of tobacco leaves grown in the Shek Loong Ha District, Kwang Tung, was found to contain in 100 parts of vacuum dried material :-
Nicotine,
Ash,
.89
8.74
The vacuum dried material dried at 100° C. lost 14.5 per cent in weight.
This kind of very mild tobacco leaf is sold at $16 a picul (1334lbs.). Though too weak for men, it is said to be appreciated and chiefly smoked by native women.
EXAMINATIONS FOR THE PUBLIC.
15. The public continue to take advantage of the Laboratory being open to undertake non-official analyses, and have forwarded a great variety of samples for examination. The fees paid into the Treasury during the year amounted to $3,099.50.
SPECIAL REPORTS.
16. Special Reports have been supplied on :-
Disinfectants.
Soft Soap.
Roof protection for petroleum tanks.
Water Gas.
Water purification.
Dangerous Goods:-Naphtha, Rackarock, Detonators, Calcium Carbide, Picric
Acid, and others.
The Prepared Opium Ordinance :-
Liquid fuel as a pulicide and culicide. Matches.
17. The value of the year's work as determined from the tariff of fees (Government Notificaton No. 664 of 1901) is $7,297.50. The amount does not include anything for the special reports mentioned above, and there is much beside for which nothing has been set down.
LIBRARY.
18. A few standard works of reference have been added.
FRANK BROWNE, Ph. Ch., F.C.S.
No comments yet.
Private notes are available after approval.