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XXIV. An account of a method of dividing astronomical and other instruments, by ocular inspection; in which the usual tools for graduating are not employed; the whole operation being so contrived, that no error can occur but what is chargeable to vision, when assisted by the best optical means of viewing and measuring minute quantities
Troughton, EdwardVolume:
34
Language:
english
Journal:
Philosophical Magazine Series 1
DOI:
10.1080/14786440908562944
Date:
September, 1809
File:
PDF, 956 KB
english, 1809