Materia photographica : a treatise on the manufacture, properties, and uses of the substances employed in photography (1891)
Leaper, Clement J · London : Iliffe · leaf 16
4 MATERIA PHOTOGRAPHICA. Retorts are thin glass globes, with bent necks, and intended to receive liquids for distillation. Tubulated retorts are far mora convenient than plain retorts, but, of course, more expensive. For many purposes a flask, or even an ordinary tin can fitted with a cork and a… … Liebig's Condenser consists essentially of an inner glass tube, surrounded by an outer one, through which water circulates. It is employed for distillations, the vapour it is required to con- dense being led through the inner tube. Retort Stand.— This is a vertical iron rod, mounted on a heavy…
Photography
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