Wilson's quarter century in photography : a collection of hints on practical photography which form a complete text-book of the art . ottom, forming a sort of s(juarefunnel. This is lined with lead in the usualmanner. The neck is formed by a piece oflead or brass tubing, about six inches longand one and a half inch diameter, and whichis stopped at the bottom. Into this is in-serted a sort of double stopcock, the plug ofwhich is so bored that when one tube is open,the other is shut. These taps are firmly at-tached by means of an iron rod to the lowerpart of the tap used to regulate the supplyof
Wilson's quarter century in photography : a collection of hints on practical photography which form a complete text-book of the art . ottom, forming a sort of s(juarefunnel. This is lined with lead in the usualmanner. The neck is formed by a piece oflead or brass tubing, about six inches longand one and a half inch diameter, and whichis stopped at the bottom. Into this is in-serted a sort of double stopcock, the plug ofwhich is so bored that when one tube is open,the other is shut. These taps are firmly at-tached by means of an iron rod to the lowerpart of the tap used to regulate the supplyof water over the sink; and are so arrangedthat when the water is turned on into thesink that portion of the stopcock leading tothe water is turned on also, while that lead-ing to the vessels containing the silver solu-tion is turned off, thus allowing the waterused in washing to flow away. The simpleact of turning off the water supply at once turning off the escape pipe, and opening thatleading to the reservoir containing the solutions which, of course, remains open untilthe water is again turned on for washing the plates. (251). 252 Wilsons quarter century in photography. seen by the dimensions given^ is suited for a moderate business. It is roomy,amply lighted, and well arranged. A drawing will help. The dark-room is at the northwest corner of the studio,convenient to tlie operator and yet outof the way. Entering the room we findon the left, or west side, 1, a dumb-waiter, communicating with the work-room on the ground-floor; 2, a smallcloset, used for filtering apparatus forthe bath ; 3, is the negative bath ; 4, isa window with ruby glass, covered witha yellow curtain, and also furnishedwith a dark opaque curtain sliding on arod, so that the room may be made verydark or moderately so, at will. At thenorth end of the room are three tanksviz.: 5, 30 inches square, by 12 inchesdeep, for developing and first washings; 6, 30 inches wide, 47 inches long, 6inches deep, for final wa
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Keywords: ., bookcentury1800, bookdecade1880, bookidwilsonsquart, bookyear1887
