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To J. de C. Sowerby   [8] June [1850]


CD is pleased with the drawings for Fossil Cirripedia but wants a few corrections which he would like very soon.

Author:  Charles Robert Darwin
Addressee:  James de Carle Sowerby
Date:  [8] June [1850]
Classmark:  American Philosophical Society (Mss.B.D25.)
Letter no:  DCP-LETT-1338

To J. D. Hooker   13 June [1850]



On Himalayan stratigraphy. Believes JDH’s observations of glacial action are the first ever done east of Urals.

Barnacles and the species theory; impressed with variation.

Effect of CD’s species sketch on JDH’s view of willow systematics.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  13 June [1850]
Classmark:  DAR 114: 115
Letter no:  DCP-LETT-1339

To Louis Agassiz   15 June [1850]


Thanks LA for presentation copy of his book, Lake Superior [1850].

Comments on species of cirripedes sent by LA and A. A. Gould.

Author:  Charles Robert Darwin
Addressee:  Jean Louis Rodolphe (Louis) Agassiz
Date:  15 June [1850]
Classmark:  Houghton Library, Harvard University (MS Am 1419: 275)
Letter no:  DCP-LETT-1341

To J. J. S. Steenstrup   15 June [1850]


Asks him to send additional cirripede specimens.

Author:  Charles Robert Darwin
Addressee:  Johannes Japetus Smith (Japetus) Steenstrup
Date:  15 June [1850]
Classmark:  Det Kongelige Bibliotek, Copenhagen (NKS 3460 4to)
Letter no:  DCP-LETT-1342

To Charles Lyell   [8 June 1850]


Discusses depths at which ripple-marks appear on sea-floor.

Personal and social comment.

Mentions receiving Agassiz’s Lake Superior [1850].

Author:  Charles Robert Darwin
Addressee:  Charles Lyell, 1st baronet
Date:  [8 June 1850]
Classmark:  American Philosophical Society (Mss.B.D25.94)
Letter no:  DCP-LETT-1337
Document type
letter (5)
Darwin, C. R.[X]
08 (2)
13 (1)
15 (2)