RGO Archives/RGO 18 contains:
<-- See earlier
636	Star catalogue
637	Number unassigned
638	Description of the altazimuth
639	Description of the transit circle
640	Description of the transit circle
641	Description of the galvanic chronographic apparatus
642	Description of the Great Equatorial
643	History of the water telescope
644	History of the water telescope
645	Description of the time-signal system
646	Description of the time-signal system

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Greenwich Observations

Title	Description of the galvanic chronographic apparatus
Reference	RGO 18/641
Covering Dates	1857
Extent and Medium	1 volume

Content and context

A description of the galvanic chronographic apparatus of the Royal Observatory, Greenwich, published by George Edward Eyre and William Spottiswoode, 1857. The volume includes drawings. The description was an appendix to the Greenwich Observation, 1856.

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