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3. On certain Anomalous Deviations of the Transit Instrument at the Royal Observatory

Published online by Cambridge University Press:  16 March 2015

C. P. Smyth
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Extract

Professor Henderson had found a connection between the changes in the level of the transit axis and the readings of a thermometer which he conceived to shew the temperature of the surface of the rock outside the Observatory; and was accustomed latterly to determine the level error of the axis merely from the indications of the thermometer.

Type
Proceedings 1846-47
Information
Proceedings of the Royal Society of Edinburgh , Volume 2 , 1851 , pp. 142 - 144
Copyright
Copyright © Royal Society of Edinburgh 1850

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