M(1)45
Experiments have been made with a modification of the Gutzeit apparatus for arsenic with the object of finding a method for the rapid estimation of arsenic in ores up to 1.0%, and this was successfully accomplished.
Work is being continued on methods for the detection and estimation of traces of carbon bisulphide in foodstuffs, in connection with the work of treating Naval stores with this substance for the elimination of weevils and other organisms.
SAMPLING.
The following sampling of metals, ores, and oils, etc., was carried out by the Laboratory staff during the year:-
Tin 53,810 slabs Lard 30 tons Antimony 6,789 containers Anise oil Cupro-nickel 3,497 bags Wolfram 1,120 bags Carbonate of potash 1,496 Cassia oil 21 Kerosene 40,000 cases Bismuthite 27 bags Coal 100 tons Condensed milk 375 Wood oil 21,708 containers Tobacco 1 caseREVENUE.
The fees paid into the Treasury during the year amounted to $16,422.50 as against $28,000.00 in 1925. This decline in revenue is entirely due to the adverse trade conditions existing during the past twelve months.
The value of the work done, as determined from the Tariff of Fees (Government Notification No.439 of 1918) was $42,202.50 as against $50,085.00 in 1925.
STAFF.
No change has taken place in the staff during the year.
E. R. DOVEY,
Government Analyst.