. Technical paper . s throughthe system. The glass reservoir, E, for collecting and retaining thesample for analysis is connected through the side tube, C, by meansof the capillary glass tube, D, which fits snugly in C and is passed inuntil its open end is in the stream of gas flowing through B. Beforebeginning the collection of a sample, the reservoir, E, is filled withmercury and suction is applied to the wash bottle until all air isremoved from the system. Before connecting D and E the air in Dis removed by suction, and, with the connections made as shown inthe illustration, the stopcocks o
. Technical paper . s throughthe system. The glass reservoir, E, for collecting and retaining thesample for analysis is connected through the side tube, C, by meansof the capillary glass tube, D, which fits snugly in C and is passed inuntil its open end is in the stream of gas flowing through B. Beforebeginning the collection of a sample, the reservoir, E, is filled withmercury and suction is applied to the wash bottle until all air isremoved from the system. Before connecting D and E the air in Dis removed by suction, and, with the connections made as shown inthe illustration, the stopcocks of E are opened and the mercuryallowed to drain out, the gas collecting above the mercury in E. 14 COMBUSTION OF COAL IN BOILER FURNACES. As long as the surface of the mercury in E is above the lower end ofthe glass tube by which the gas gains entrance, the gas will enterE at a uniform rate and the sample will be representative. Inorder to regulate the period of sampling, a glass tube, drawn out at C Jl 1 -l|l--Hl- B. p v.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
