Search: 1870-1879 in date 
Darwin, C. R. in correspondent 
Treat, Mary in correspondent 
Amy Nagashima (private collection) in repository 
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DCP-LETT-8146

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

DCP-LETT-8719

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

DCP-LETT-9505

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

DCP-LETT-10523

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
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