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From:
Charles Robert Darwin
To:
Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Date:
5 Jan 1872
Source of text:
Amy Nagashima (private collection)
Summary:

Praises MT’s observations and asks her to repeat experiments on the the relation of sexes of butterflies to the nutrition of the larvae.

Is glad she will publish her observations on Drosera.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Date:
1 Jan 1873
Source of text:
Amy Nagashima (private collection)
Summary:

Asks for certain observations to be made on Drosera and Dionaea.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Date:
12 Aug 1873
Source of text:
Vineland Historical and Antiquarian Society
Summary:

Thanks MT for information on Drosera filiformis [see 8989].

Warns her against publishing statement about Drosera bending towards flies or meat that they have not touched.

Will send his book [Insectivorous plants] when published.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Date:
22 June 1874
Source of text:
Amy Nagashima (private collection)
Summary:

Will soon publish on insectivorous plants; asks for a particular observation on Dionaea.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Date:
21 Apr [1876]
Source of text:
Vineland Historical and Antiquarian Society
Summary:

Congratulations on finding water-lily.

Thanks for Pinguicula specimens.

Asks for reference to her article on Utricularia [see 10508].

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Mary Lua Adelia (Mary) Davis; Mary Lua Adelia (Mary) Treat
Date:
1 June 1876
Source of text:
Amy Nagashima (private collection)
Summary:

Thanks MT for her article ["Is the valve of Utricularia sensitive?", Harper’s New Mon. Mag. 52 (1875): 382–7]. Does not understand why he failed to detect movement [in Utricularia], but it appears from her observations that the valve is sensitive.

Contributor:
Darwin Correspondence Project