. The Street railway journal . up to about 5 lbs., and of such a grade that theindex needle will move with the addition of 10 grains to oneside of it. Fig. 2 is a rough ground plan of a smaller laboratory, inwhich Z is the laboratory proper, M is the stink cupboard, Nis the reagent cupboard, / is the bench, H is the sink, H is thewater bath, and QPG is a table with a small copper still heatedby gas, a small condensing tank and a distilled water bottleon it. C is the sample room, R is the sampling table, and T isthe bench. B is the passageway, E is the balance room andoffice, / is the desk, K i
. The Street railway journal . up to about 5 lbs., and of such a grade that theindex needle will move with the addition of 10 grains to oneside of it. Fig. 2 is a rough ground plan of a smaller laboratory, inwhich Z is the laboratory proper, M is the stink cupboard, Nis the reagent cupboard, / is the bench, H is the sink, H is thewater bath, and QPG is a table with a small copper still heatedby gas, a small condensing tank and a distilled water bottleon it. C is the sample room, R is the sampling table, and T isthe bench. B is the passageway, E is the balance room andoffice, / is the desk, K is the bookcase, and L the table for thebalance and desiccators. Fig. 3 is a rough plan of a still smaller arrangement, inwhich E is the sampling room, office and balance room. R isthe sampling table, T is the bench, K is the bookcase, / is thedesk, and L is a small case with a glass front that can be liftedupward, and in which the balance is kept. Z is the laboratory,M is the stink cupboard, N is the reagent cupboard, / is the. FIG. 2.—MEDIUM-SIZED LABORATORY FIG. 4.—GAS-GENERATING APPARATUS a circular tank about 6 ft. deep and 3 ft. in diameter, supportedon a stool about 2]A ft. high. Inside the tank is a coiled- fincondensing tube, which is soldered to and passes through theside of the tank about 1 ft. from the top, the outer portion beingexpanded so that the nozzle from the copper still Q can be in-serted into it, the coupling being made steam tight with asbes-tos. The bottom end of the tin coil is soldered to and passesthrough the front of the tank about 2 ins. from the bottom,protruding about 6 ins. The incoming condensing water isallowed to trickle into the mouth of a long-necked tin funnel bench, H is the sink, 11 is the water bath, and QPG is a tablewith a copper retort and condensing tube for distilling water. Having described the laboratory buildings, it may not be outof place to now give the details of the apparatus necessary forthe production of gas, provided th
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
