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From:
Adolph Theodor Kupffer
To:
Edward Sabine
Date:
18/30 April 1840
Source of text:
MM/10/42, Royal Society
Summary:

No summary available.

Contributor:
Royal Society
From:
Friedrich Wilhelm Bessel
To:
Sir John Herschel
Date:
[18 April 1840]
Source of text:
RS:HS 4.74
Summary:

Describes additional measurement of annual parallax.

Contributor:
John Herschel Project