. 1. Between said bars are secured four upright paddles,B, placed with their forward edges inclined inward, andrabbeted or concaved on the sides, as shown in section inFig. 1. in alcohol, lac bleached by this process yields a varnishwhich is as free from color as any copal varnish. The application… … Atmoapherlc Ammonia. M. Schloesing has recently studied the exchangeof ammonia which takes place between water andthe atmosphere. The water which condenses in theclouds and which falls in rain would at first sightappear to despoil the air of all the ammonia con-tained. Such, however, is far from…
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