From:
Joseph Henry Gilbert
To:
Charles Robert Darwin
Date:
7 Mar 1881
Source of text:
Rothamsted Research (GIL13)
Summary:
Sends some books.
Contributor:
Darwin Correspondence Project
Showing 1–5 of 5 items
Sends some books.
Asks whether vegetable mould has an acid reaction. The contents of intestines of earthworms and castings are acid, which leads him to inquire about mould.
Discusses acidity of earthworm castings. JHG’s reply will make him more cautious.
Would like to see W. A. Detmer’s paper [Landwirtsch. Versuchs-Stat. 14 (1871): 248–300] and S. W. Johnson’s work [How crops feed].
Comments on food value of white and brown bread.
Returns the two books JHG had lent him. "I can plainly see I had better say nothing about the acidity of common mould."
Regrets that he has not strength enough to visit [Rothamsted].