Page:The Art of Distillation, 1651.djvu/28

4 Of Veels fit for Ditillation. Eels for Ditillation are of various matter, and form. For they may be either of lead, which I altogether diapprove of, for that they turn the Liquors into a white and milky ubtance, beide the malignity they give to them; or they may be of Copper, Iron, or Tin, which are better then the former; or of Jug-metall, or Potters-metall glazed, or Glas, which are the bet of all, where they may be ued without fear of breaking or melting. Some make them of ilver, but they are very chargeable. They that are able and willing may have the benefit of them.

Of Lutes, for coating of glaes, and for Cloures, as alo everall wayes of topping Glaes. He bet Lute is made thus, viz. Take of Loame and and tempered with alt water (which keeps it from cleaving) to thee adde the Caput Mortuum of Vitriall, or Aqua fortis, and caling of Iron, and temper them well together, and this erveth to coat Retorts or any Glas veels that mut endure a mot trong fire, and will never fail if well made. Some add Flax, beaten Glas, and Pots and flint, &c. Take unlaked Lime, and Lineed Oil, mix them well together and make thereof a Lute which will be o hard that no pirit will peirce it, and this erves for the cloure of Glaes. Or, Take Loam and the white of an Egge, mixe them into a Pat, and pread it on a cloth. This alo is a good cloure. Or, Moiten an Oxe Bladder in the white of an Egge beaten to water, or in defect of a Bladder, ue Paper, and bind them round where the Veels are joined together, one over another two or three times. Or, If the pirits in the Glas be exeecding corroive, then ue the Caput mortuum of Aqua fortis, Lineed Oil, and chalk mixed together. If