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| | Mineralogical Record: History of the development of the crystallographic goniometer |
 | | Mitscherlich's sketches of his goniometer do not show a signal scope, but he mentions the possibility of a supplementary signal scope, and his original surviving instrument suggests that a second brass support, now absent, was attached to the wooden base (Fig. |
 | | In 1822, Mitscherlich was appointed professor of chemistry at the University of Berlin. |
 | | Mitscherlich first published his treatise About a Goniometer in 1843, but indicated that he had already worked on it for 16 years, that is, since 1827. |
| www.findarticles.com /p/articles/mi_qa3672/is_199811/ai_n8814710/pg_12 (1487 words) |
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