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Microscopical Discoveries

Microscopical Discoveries

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This engraving depicts a variety of crystallizations including those from such sources as the fixed salt of Carduus-benedictus, the salt of wormwood, alum, nitre, blue vitriol, the marine salts of plants, the essential salts of plants, and crystals of silver dissolved in aquafortis.
Currently not on view
Object Name
overall: 14 1/2 in x 9 in; 36.83 cm x 22.86 cm
overall in mat: 19 5/8 in x 13 3/4 in; 49.8475 cm x 34.925 cm
ID Number
catalog number
accession number
Science & Scientific Instruments
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Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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