From Francis Darwin [after March 1873]1
Dear Father
I’m afraid the albumen theory wont do because in making extract: Belladonna Hyoscyami & Colchici. the albumen is coagulated by heat and filtered out—& in Stramonii it says the “active matters are extracted by proof spirit” so that the albumen wouldnt be got out— Possibly these may save vegetable albumens like casein not coagulable by heat I will find out—2
Yrs affec | F Darwin
Footnotes
Summary
Fears [CD’s] albumen theory will not work because albumen is coagulated and filtered out in making extracts of belladonna, hyoscyamine, and colchicine [alkaloid poisons].
Letter details
- Letter no.
- DCP-LETT-9198
- From
- Francis Darwin
- To
- Charles Robert Darwin
- Sent from
- unstated
- Source of text
- DAR 58.1: 132
- Physical description
- ALS 1p
Please cite as
Darwin Correspondence Project, “Letter no. 9198,” accessed on 19 April 2024, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-9198.xml
Also published in The Correspondence of Charles Darwin, vol. 21