On the recognition marks of animals.
A typical letter handwritten by author in English and signed by author.
Pages with text: 3
Transcriber: Catchpole, Caroline
Transcription date: September 26, 2013
Scrutiny: 26/09/2013 - Catchpole, Caroline;
Signed off: no
Thanks for your copy of "Nature" with your paper re Recognition Marks, which I had read. Although the exact purpose of the marking in individual cases can only be determined by observation of the animal’s habits in its native surroundings, yet I feel pretty sure that my general explanation is correct, because the markings agree so closely in general type in so many different groups. I do [] not think the well-defined patches of white on the neck on the antelope you figure can be of the same nature as the gradually shaded white of the underside of so many mammals & birds as beautifully explained by Thayer2.
But I consider it waste of time to discuss each special case in the absence of close outdoor observation. The great number of the cases of white markings on the wings & tails of birds, & some of the white marks on the tail or rump of mammals, which are concealed [] except during motion is to me conclusive of the general principle as recognition marks.
Yours very truly | Alfred R. Wallace [signature]
1. The beginning of the transcript of this letter is incomplete.
2. Abbott Handerson Thayer (1849-1921), American naturalist.
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