Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 463
for the sulphate of lead is absolutely insoluble. Its equivalent number is veryhigh, one himdred and four of lead being equal to thirty-two of zinc, which is one serious objection toits use. Tin may be used to generate electricity, it being soluble in muriatic, sulphuric, acetic, oxalic acids^Ac.… … ELECTRO-METALLURGY. 451 several metals, but, unfortunately, has a high combining number, requiring fiftv-eight grains to generateas much power as thirty-two grains of zinc. A solution of a salt of copper is to be placed in a convenient vessel, Fi^^. 1278, and the object N, onwhich the precipitation…
Mechanical engineering
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![An illustration from R. Abrahami Eleazaris Uraltes chymisches Werk, welches ehedessen von dem Autore Theils in lateinischer und arabischer, Theils auch in chaldäischer und syrischer Sprache geschrieben, nachmahls von einem Anonymo in unsere deutsche Muttersprache übersetzet. Nun aber nebst zugehörigen Kupfern, Figuren ... ingleichen einigen philosophischen Regeln von dem Steine der Weisen zu Nutz und Gebrauch aller Liebhaber der edlen Hermetischen Philosophie, in II. Theilen zum öffentlichen Druck befördert worden durch Iulium Gervasium Schwartzburgicum, P. M. & I. P. E / [Abraham Eleazar]. (1760)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b30544506-200-1.webp)
