EditorialCrystals of verdigris 1, boric acid 2, common salt 3, and sal ammoniac 4 under the microscope. Handcoloured copperplate engraving from Bertuch's "Bilderbuch fur Kinder" (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was...
EditorialCrystals of verdigris 1, boric acid 2, common salt 3, and sal ammoniac 4 under the microscope. Handcoloured copperplate engraving from Bertuch's "Bilderbuch fur Kinder" (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was...