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To T. L. Brunton   11 May 1874

Summary

Encloses, for examination, residue from skim-milk which has been on the glands of Drosera. Asks TLB to confirm his views on action of Drosera secretion on milk. Asks about effects of pepsin and hydrochloric acid in digestive juice.

Author:  Charles Robert Darwin
Addressee:  Thomas Lauder Brunton, 1st baronet
Date:  11 May 1874
Classmark:  Princeton University Library, Department of Rare Books and Special Collections, Manuscripts Division (C0140 Box 13 AM20431)
Letter no:  DCP-LETT-9453

To T. L. Brunton   25 May [1874]

Summary

CD responds to information about residue of milk digested by Drosera. Is obliged for information on strength of acids and albumen and now has little doubt acid had impaired the leaves. Awaits word on pepsin and papaw juice.

Author:  Charles Robert Darwin
Addressee:  Thomas Lauder Brunton, 1st baronet
Date:  25 May [1874]
Classmark:  American Philosophical Society (Mss.B.D25.)
Letter no:  DCP-LETT-9468

From T. L. Brunton   23 May 1874

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Summary

Comments on his examination of slides [of milk casein?] sent by CD.

Surprised by CD’s finding that a drop of one per cent hydrochloric acid stops digestion of albumen by Drosera.

Author:  Thomas Lauder Brunton, 1st baronet
Addressee:  Charles Robert Darwin
Date:  23 May 1874
Classmark:  DAR 58.1: 120–2
Letter no:  DCP-LETT-10512
Document type
letter (3)
Addressee
Correspondent
Brunton, T. L.disabled_by_default
Darwin, C. R.disabled_by_default