 Watt told me it was acid. The common method of making drying oil, is to put about half an ounce of litharge to each quart of the oil : boil it not hastily or violently, but with a moderate and equal fire, for about two hours, scumming it. If it be boiled...  The Domestic Encyclopaedia: SNU-ZIZ - Page 227by Anthony Florian Madinger Willich - 1804Full view - About this book
 | Hewson Clarke, John Dougall - Drawing - 1817 - 928 pages
...half an ounce of litharge to eacli quart of the oil. Boil it, not hastily or violently, but with a moderate and equal fire, for about two hours, scumming...Perhaps white lead would be better to use than litharge. Poppy-oil is from the seeds of the common poppy. Nut-oi! is the oil expressed in the same manner from... | |
 | Hewson Clarke, John Dougall - Drawing - 1817 - 902 pages
...liait' an ounce Of litharge to each quart of thç oil. Boil it, not hastily or violently, bat with a moderate and equal fire, for about two hours, scumming...sediment has perfectly subsided ; then separate the clean oily which will grow the clearer and the better tor keeping. When it is made perfectly drying, it will... | |
 | Cooking - 1819 - 440 pages
...about half an ounce of litharge to each quart of the oil : boil it not hastily or violently, but with a moderate and equal fire for about two hours, scumming...will have a scum formed at the top. Perhaps white leadwould be better to use than litharge. •Poppy O'd> *s from tae seeds of the common poppy Nut Oi7,... | |
 | Maria Eliza Ketelby Rundell - Formulas, recipes, etc - 1819 - 430 pages
...about half an ounce of litharge to each quart of the oil ; boil it not hastily or violently, but with a moderate and equal fire for about two hours, scumming it. If it be boiled too hard it wiH be burnl, and become brown. Let this rest till all sediment has perfectly subsided, then separate... | |
 | Hewson Clarke, John Dougall - Agriculture - 1825 - 892 pages
...hastily or violently, but ,with a moderate and equal fire, for about two hours, scumming it. If it;be boiled too hard, it will be burnt, and become brown....the clean oil, which will grow the clearer and the jbetter for keeping. When it is made perfectly drying, it will have a scum formed at the top. Perhaps... | |
 | Maria Eliza Rundell - 1837 - 596 pages
...about half an ounce of litharge to each quart of the oil : boil it not hastily or violently, but with a moderate and equal fire, for about two hours, scumming...Perhaps white lead would be better to use than litharge. Poppy oil, is from the seeds of the common poppy. Nut oil, is the oil expressed in the same manner... | |
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