Tab. Xxi. No. 4. Of the minerals. Marble 1; a quartz geode 2; two fossilized teeth 3, 5 (the last is taken by the ignorant for a thunderbolt). A sea urchin 4. A star stone 6, 7, a sun stone 8; a fossilized kitchen mussel 9, a fossilized and filled gin shell 10. A fossilized fish 11; a leaf stone 12; a kidney stone 13; a tree stone 14. – d) the figures of salt crystals and all sides of each in nets. – c) some snow figures. – d) some tools for working natural objects. A muffle 1; two melting crucibles; a mortar 2; a mortar 3; a club-shaped flask 4; two flasks chained together 5; a retort 6 cemented to the template 7 with the sand chapel in the fire barrel. The pot of a marienbad or steam bath 8. A distillation bubble 9, 10, with the cooling barrel 14, and the template 12, 13. (description according to source). Date: 1774.
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