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Bulletin. Science. Figure 40.—Schweigger's multiplier. From Schweigger's Journal Jiir Chemie mid Physik, 1821, vol. 31, pi. I (after p. 114).. Figure 41.—Sturgeon's first electromagnet. From Transactions of the Society jor the
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Handbuch der Krystallographischen Chemie BOUND WITH SUPPLEMENT Die neuesten Forschungen in der Krystallographischen Chemie : zugleich als Supplement zu dem Handbuch der Krystallographischen Chemie | C. F. Rammelsberg,
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