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Semper, C. G. in author 
1870-1879::1877 in date 
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From:
Carl Gottfried Semper
To:
Charles Robert Darwin
Date:
26 Apr 1877
Source of text:
DAR 177: 137
Summary:

Explains why he did not add his photograph to the album presented by German naturalists to CD. Instead he wishes to dedicate to CD his work on the vertebrate-type eyes on the back of some Mollusca. [Enclosed is a MS introduction to this work, Über Sehorgane von Typus der Wirbelthieraugen auf dem Rücken von Schnecken.].

Contributor:
Darwin Correspondence Project
From:
Carl Gottfried Semper
To:
Charles Robert Darwin
Date:
13 July 1877
Source of text:
DAR 177: 138
Summary:

Sends work on dorsal eyes of Onchidium ["Über Schneckenaugen", Arch. Mikrosk. Anat. 14 (1877): 118–24]. Comments on work.

Contributor:
Darwin Correspondence Project