AnnualReport-1916

M 86

MINERALOGICAL.

7. The 426 samples of metals and ores examined during the year comprised the following:-

Metals. Ores. Tin, 138 Antimony, 40 Antimony, 94 Tin, 6 Mercury, 7 Iron, 27 Lead, 28 Manganese, 17 Copper, 3 Lead, 4 Zinc, 2 Zinc, 3 Molybdenum, 2 Gold, 2 Gold, 5 Tungsten, 9 Brass, 8 Arsenic, 2 Iron, ... Barium, 8 Total, 203 Other ores, 21 Total, 223

SAMPLING.

8. The laboratory staff has undertaken an increased amount of sampling for dealers and exporters, and thus assisted in obtaining representative samples of consignments, without which, in many cases, an analysis would only be misleading. The work done includes the following:-

Tin, 70,152 slabs. Antimony, 5,588 cases. Antimony ore, 41,043 bags. Wood oil, 9,410 vats. Peanut oil, 3,510 cases. Anise oil, 2,380 Cassia oil, 490

Also smaller quantities of zinc, mercury, saltpetre, caustic soda, coconut oil, tallow, and lard.

EXAMINATIONS FOR THE PUBLIC.

9. The public continue to take advantage of the Laboratory and have forwarded a great variety of samples for examination on payment. The fees paid into the Treasury during the year amount to $19,429.50 as against $20,764.00 in 1915.

SPECIAL REPORTS.

10. Special Reports have been supplied on the Preservation of Eggs, the Expansion of Oils, the Composition of Chinese Tin and Antimony, and the Determination of Cinnamic Aldehyde.