Epsilon: Search Results

From:

G. W. Royston-Pigott

To:

Sir John Herschel

Date:

[12 December 1870]

Source of text:

RS:HS 14.507

Summary:

Discusses his thoughts on high powered definition and residual aberration in microscopes. Thinks they may be applicable to telescopes.

Contributor:

John Herschel Project

From:

Vladimir Onufrievich Kovalevsky (Владимир Онуфриевич Ковалевский)

To:

Charles Robert Darwin

Date:

12 Dec [1870]

Source of text:

DAR 169: 68

Summary:

Progress on his Russian translation of Descent.

Alexander Kovalevsky is at Tor in Sinai, where C. G. Ehrenberg was in 1827.

Has CD seen Ernst Haeckel’s new book [Biologische Studien (1870–7)]?

Contributor:

Darwin Correspondence Project