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Darwin, C. R. in correspondent 
Bridgman, W. K. in correspondent 
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From:
Charles Robert Darwin
To:
William Kencely Bridgman
Date:
21 Jan [1869]
Source of text:
DAR 143: 146
Summary:

Discusses fertilisation of Aucuba and Polygala.

Contributor:
Darwin Correspondence Project
From:
William Kencely Bridgman
To:
Charles Robert Darwin
Date:
23 Jan 1869
Source of text:
DAR 160: 307
Summary:

Is assembling apparatus of lenses and reflector to observe flower from opening to first shedding of pollen, and to determine whether fertilisation is by night- or day-feeders.

Will also examine reasons for absence of nectar in Polygala linaria.

Contributor:
Darwin Correspondence Project
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