From:
Harrison William Weir
To:
Charles Robert Darwin
Date:
28 Mar 1868
Source of text:
DAR 84.1: 86–7
Summary:
Recognition of colour by animals.
Contributor:
Darwin Correspondence Project
From:
Harrison William Weir
To:
Charles Robert Darwin
Date:
23 Mar 1869
Source of text:
DAR 86: C10, DAR 84.1: 118
Summary:
Proportion of sexes in pigeons, pigs, and pheasants.
Sexual preferences of females.
Contributor:
Darwin Correspondence Project
From:
Harrison William Weir
To:
Charles Robert Darwin
Date:
7 May 1869
Source of text:
DAR 181: 71
Summary:
Daisies.
A tame rabbit with a litter of 18.
Contributor:
Darwin Correspondence Project
From:
Harrison William Weir
To:
Charles Robert Darwin
Date:
28 Mar 1871
Source of text:
DAR 181: 72
Summary:
Effects of first impregnation on litters from subsequent pregnancies.
Power of selective breeding to produce different varieties.
Contributor:
Darwin Correspondence Project