G B. Heckel · Educational Bureau: Paint Manufacturer's Association of the United States · leaf 30
The Material* of Paint Manufacture ate is a molecular combination of the hydroxide and the carbonate of lead in about the propor- tion of two parts of the latter to one of the former, though these proportions are only ap- proximated in actual practice. The accepted fnrniula, however, is 2PbC03,… … Kauri Gum'—Trenching The Old Dutch Process, so called—though it has undergone great improvement in Eng- lish and American practice—starts with desil- vered lead pigs, known in the trade as "soft lead." These are mehed, and the molten lead is distributed in shallow moulds on an endless chain belt.…
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