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From:
Charles Robert Darwin
To:
Felix Anton (Anton) Dohrn
Date:
4 Jan 1870
Source of text:
Bayerische Staatsbibliothek München (Ana 525. Ba 697); Bibliothèque de Genève (Ms. fr. 2188, ff. 296-7)
Summary:

The Zoological Garden has only one old adult male of Limulus. When there were females, eggs were never observed.

Encloses a separate letter [formerly 7071] about AD’s scheme [for a zoological station].

Suggests AD be cautious [in his work]. "Caution is almost the soul of science."

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Felix Anton (Anton) Dohrn
Date:
2 June [1873]
Source of text:
Bibliothèque de Genève (D.O. autogr. 12/50)
Summary:

Thanks AD for kind review of Expression. AD’s remarks on necessity of tracing development of functions are novel and valuable.

Contributor:
Darwin Correspondence Project