nual Directors have pleasure in In present to the Shareholders the An-
Guarantees.—Dr. Hirzel's guarantees were as follow:
"The average. duration of a Retort to be 120 days, and an hourly production of from 300 to 400 cubic feet of gus."
IL.—1001bs. of refined kerosene oil to yield 953.5 cubic feet of gas."
TiL—That a burner consuming one and a half cubic feet per hour has a minimum lighting power. of 12 normal candles." of 03 LY. B00, of coal to evaporate 100s My experience shows That one Retort worked 4,320 hours, that la 180 days; the other only ubout 1,450 hours or sny 60 days; the two Retorts as un. average lasted 120 days, in accordance with guarantee. The difference in time of workin, can only be explained by different quality Retorts.
The hourly production has been from 300 to 350 cubic feet of gas.
IL—We obtain an average of about 1,080 cubic feet of gus from 1001bs, of oil.
Tests have been made of Batoumn oil and we have experimented with the Tar for production of gas, but as the final result the Devoe brand allows itself superior ILL We have burners varying from 1 54 to 2.1 cubic feet consumption "per hour and giving a light of from 16 to 22 normal candle ower, (Unit 1 spermaceti candle of 20 min, now ppted for Oil Gas, cor eopecialy adapted for ON Gans TV.—We use now 145Ibs. of No. 5 Seam Lamp Kai-ping Coal to evaporate 100lbs. of 'V.—From the oil we get 20% of Creosote Tar, which is sold and used for painting and wood, and of the Coal about 337% is converted. into Coke.
Plant.—Besides. the Ketorts, which are worn out in a certain space of time as already stated, the furnaces are the only parts of our plant which really depreciate, os the bricks Of the arches come down, and' the iron doors have to be renewed say, once a year, The
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