Painters' colours, oils, and varnishes : a practical manual (1906)
Hurst, George H. (George Henry) · London : Charles Griffin & Company · leaf 358
olve the various ingredients used; and 2nd, vessels in which the ingredients are mixed together, precipitation vessels, which are preferably of wood, as those of earthenware would be too easily broken, and could not be made so large as required. The two classes of tanks or tubs should be kept… … Fig. 36.— Plant for preparing pigments for precipitation. making a Prussian blue, the results in the second case would not be very satisfactory ; the rule of a colour shop should be that every distinct colour has its own set of tubs. The reason for such a course is that it is practically impossible…
Paint · Varnish and varnishing
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