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The only additional equipment necessary for an ordinary engineer's transit is a colored glass over the eye - piece . Even this may be dispensed with in the following manner : Draw out the eye - piece tube a little way and hold a card ...
Prevention : 3 gr quinine before each meal ; avoid constipation , by fruit diet or laxatives , if necessary . Build houses on highest ground available , remove foliage in immediate vicinity , screen carefully , and drain mosquito ...
An approximate knowledge of the metal content is necessary for good results , and the first assay may serve only as preliminary . Alloy for cupellation should contain at least 7 times as much gold as platinum metals , and silver 2.5 ...
Apa yang dikatakan orang - Tulis resensi
LibraryThing ReviewUlasan Pengguna - wackyvorlon - LibraryThing
I only have the second volume of this work, and I love it! Found at a local Value Village, it is filled with fascinating information. Details of all aspects of mine engineering, including compressed air, ventilation, and supporting structures. Baca ulasan lengkap
Conditions Methods in General
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