skip to content

Darwin Correspondence Project

From Asa Gray   2 February 1872

Botanic Garden | Cambridge, Mass.

Feb. 2. 1872

My Dear Darwin

Your note of the 15th ult. just in.1

I have read it to two good observers,—who say the “vermiform piles” are common enough here,—and I should think, if not as common as with you thro’ the season, it was owing to interruption in the dry part of our hot summer.

I know nobody now at hand here who could give a comparison with your country. Perhaps I may find some one in Canada to ask.

Now, pray don’t run off on some other track till you have worked out and published about Drosera & Dionæa2

My wife3 joins in kindest regards to you and yours | Ever Yours sincerely | Asa Gray

CD annotations

4.1 Now, … Dionæa 4.2] crossed pencil
Top of letter: ‘Keep’ red crayon


CD had worked on Drosera and Dionaea intermittently since 1860 (see Correspondence vols. 8–15, 17–19). The results of this research appeared in 1875 in Insectivorous plants.
Jane Loring Gray.


Correspondence: The correspondence of Charles Darwin. Edited by Frederick Burkhardt et al. 27 vols to date. Cambridge: Cambridge University Press. 1985–.

Insectivorous plants. By Charles Darwin. London: John Murray. 1875.


Notes the occurrence in U. S. of "vermiform piles" produced by earthworms.

Letter details

Letter no.
Asa Gray
Charles Robert Darwin
Sent from
Botanic Garden, Cambridge, Mass.
Source of text
DAR 165: 178
Physical description
2pp †

Please cite as

Darwin Correspondence Project, “Letter no. 8194,” accessed on 7 December 2021,

Also published in The Correspondence of Charles Darwin, vol. 20