... He plunged his handsinto them and let the priceless gems filter through his fingers... 
Edgar Rice Burroughs 「Tarzan and the Jewels of Opar」
..."I might just as wellnot establish an out-post if a man can filter through whenever hepleases...
Edgar Rice Burroughs 「Tarzan the Untamed」
...Before boiling the water youcan carefully filter it if you like...
Mary H. Kingsley 「Travels in West Africa」
...After standing a few hours, filter and evaporate again...
Samuel D. Humphrey 「American Handbook of the Daguerrotype」
...With chromium, uranium, lead,platinum, and copper, it gives a dark red; that from the last metalturning brown when collected on a filter...
George Field 「Field's Chromatography」
...Thecolour after being collected on a filter, washed, and dried, can beground with linseed oil, poppy oil, or oil varnishes...
George Field 「Field's Chromatography」
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