The naturalist's and traveller's companion, containing instructions for discovering and preserving objects of natural history, etc / [Anon].

  • John Coakley Lettsom
Date:
1772
Catalogue details

Licence: Public Domain Mark

Credit: The naturalist's and traveller's companion, containing instructions for discovering and preserving objects of natural history, etc / [Anon]. Source: Wellcome Collection.

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    k Petroleum is thicker than the former, ouz.es out of the crevices of rocks, whence it leceives its name. It is frequent in Bavaria, Sicily, and France. c. Fix judaica, or afphaltum, is of the fame na¬ ture, but hard. dt Amber, and ambergris, are inflammable bo- dies, fimiiar to the foregoing. The former is found principally in Pruffia. Ambergiis is met with in the greateft quantities in the Eaft Indies, at Madagafcar, Mauritius, Borneo, the Molucca i(lands, and on the Egyptian coaft. e. Jet and foffil coal are nearly alike. The lat- ter is ftjfliciently known. |\q M I N E R A L S. THERE are fourteen metallic bodies at pre- fent known, gold, fiiver, copper, iron, tin, lead, auickfilver, platina, antimony, zinc, bifmuth, arfenic, cobalt, and nickel. The fix latter are brittle, diftinguifned by the name of femi- raetals. A. Gold when pure is not fonorous, nineteen times heavier than water, foluble in aqua regia, but'hot in the nitrous acid. \ * ... ' a. It
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