Familiar lessons on mineralogy and geology ... To which is added a practical description of the use of the lapidary's apparatus. Explaining the methods of slitting and polishing pebbles / [John Mawe].

  • John Mawe
Date:
1826
Catalogue details

Licence: Public Domain Mark

Credit: Familiar lessons on mineralogy and geology ... To which is added a practical description of the use of the lapidary's apparatus. Explaining the methods of slitting and polishing pebbles / [John Mawe]. Source: Wellcome Collection.

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    Gentlemen who work a great deal, should have]an- other tin pan, on purpose for slitting with oil. When the brushes are used, if they are above the edge of the pan, it must be elevated, or one with higher edges sub- stituted; the expense of which is not more than two or three shillings. THE END.