Search: Herschel, John in author 
1820-1829::1824::03 in date 
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Herschel7406

From:
Sir John Herschel
To:
Johann Wilhelm Pastorff
Date:
[15 March 1824]
Source of text:
RAS:JH Archive 6/2.10 verso; Reel 8
Summary:

Observations of Venus by William Herschel and JH. Only J. H. Schröter claims to have seen 'deep marginal indentations' that JP claims.

Contributor:
John Herschel Project

Herschel8194

From:
Sir John Herschel
To:
Pierre Simon Laplace
Date:
[18 March 1824]
Source of text:
RS:HS 19.7 (C: 20.178)
Summary:

Henry Kater's triangulation survey of north Scotland. Edward Sabine's study of pendulum lengths at various latitudes. François Arago did not receive letters from JH and Francis Baily. Comments on rumor of [Isaac] Newton's madness. JH plans to reduce transit observations of fixed stars at Greenwich since [James] Bradley's time. Are French and other astronomers in agreement on common system of reductions? Will visit Paris next month. Observed curious phenomena in voltaic electricity.

Contributor:
John Herschel Project
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