From W. T. Thiselton-Dyer 5 June 1874
10 Gloucester Road | Kew
June 5. 1874
Dear Mr Darwin
Let me thank you very much indeed for your most interesting letter.1 I venture to make one suggestion in respect to the Pinguicula which I fancy at the same time can hardly have escaped you
The seeds of the species of Brassica are very rich in Nitrogen. A familiar illustration of this is the fact that Rape cake (Brassica campestris)2 which is the residue after the expression of the oil is employed as a food for cattle and when damaged is even used as a nitrogenous manure. I find on referring to Knop’s tables that Rape seed contains (air dried) nearly 20 per cent of albuminoids3
Believe me | Yours very truly | W. T. Thiselton-Dyer
Footnotes
Bibliography
Knop, Wilhelm. 1868. Der Kreislauf des Stoffs. Lehrbuch der Agricultur-Chemie. 2 vols. Leipzig: H. Haessel.
Summary
Sends information on nitrogen and albuminoid content of seeds of Brassica.
Letter details
- Letter no.
- DCP-LETT-9484
- From
- William Turner Thiselton-Dyer
- To
- Charles Robert Darwin
- Sent from
- Kew
- Source of text
- DAR 58.1: 56–7
- Physical description
- ALS 3pp
Please cite as
Darwin Correspondence Project, “Letter no. 9484,” accessed on 1 September 2024, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-9484.xml
Also published in The Correspondence of Charles Darwin, vol. 22