Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 364
s use. The buffwas then recharged by dusting on rouge from a muslin bag.When the rotary buff wheel was adopted, it insuredrapid work, but it was otherwise no improvement over thehand buff. At first, the wheels were made cylindrical, but PHOTOGRAPHY. 341 that incurred the necessity of an… … sensitized. The room had a side window, generally cov-ered with yellow tissue paper, for the examination of theplate during the process. The room contained two coatingboxes, one for iodine, the other for bromine. The construc-tion of these boxes is clearly shown in Fig. 324, which is a 342…
Physics · Lantern projection · Electric apparatus and appliances
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