i'4 to 3 per cent of oxide of chromium ; zircon, in flesh-coloured grains and crystals, sp. gr. 4 to 47 ; kyanite, sp. gr. 3-45 to 37, discernible by its blue colour and perfect cleavage ; chrome diopside, sp. gr. 3-23 to 3'5, of a bright green colour ; bronzite, sp. gr. 3-1 to 3-3 ; magnetite, sp. gr. 4-9 to 5-2 ; mixed chrome and titanium iron ore, sp. gr. 4-4 to 4-9, containing from 13 to 61 per cent of oxide of chromium, and from 3 to 68 per cent of titanic acid, in changeable quantities ; hornblende, sp. gr. 2-9 to 3-4; barytes, sp. gr. 4-3 to 47 ; and mica. Some of the garnets are of fine quality, and one was recently cut which resembled a pigeonblood ruby, and attracted an offer of £25.
In the pulsator and sorting house most of the native labourers are long-sentence convicts, supplied with food, clothing, and medical attendance by the Company. They are necessarily well guarded. I myself saw about 1000 convicts at work. I was told that insubordination is very rare; apart 71
