air. A plaster hand covered with a suedeglove which has been moistened with a solution ofammonium carbonate acts similarly. There is ob-tained in this way a sort of print of the hand, a nega-tive softened at the edges and wanting in proportionin so far that the points where the hand is too farfrom… … Locomotive Derrick Crane with single Boom of Latticed Steel Construction,HANDLING MATEBIALS IN SHIPYABDS. to the formation of ammonium carbonate and thuscauses the browning of the aloes. The fermentationof a febrile sweat, rich in urea, leads to the sameresult, as is already well known. The…
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