K. Pearson to E. Nettleship, 10th Jan. 1910.- External URL
- Correspondence Details
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Sent From (Definite): Karl PearsonSent To (Definite): Edward NettleshipDate: 10 Jan 1910
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Holder (Definite): University College London: Special Collections
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Sent fromKarl Pearson
10 Jan 1910
Description:
‘My dear Nettleship,
I do not at all agree with you about bubbles being pricked re these Pekingese spaniels (please tell me if that is the right description for photograph on plates). I think it a most valuable confirmation of results that we can get in the higher mammals like conclusions for those known for mice.
Now about the mice, there exist at least two cases – this in confidence & please don’t let it go further – in Weldon’s series of extracted albinos giving some coloured offspring. I cannot published [sic] these cases, because they would certainly be put down to carelessness in the record & the mating. But there they are & in default of any knowledge of what he thought about the matter I can do nothing but hope some day to report the exact crosses which led up to this result. Anyhow they weigh sufficiently on my mind for me to believe that the crossing of the extracted albinos is a gain & worth testing for every available species.
Further you have not the least idea how slender much of the work on rats & even mice is! Also please remember this: no one has worked on the pedigrees of these dogs scientifically & such pedigrees are of much value. Of your bitches cast only albino pups you will have evidence that albinism breeds true in a much higher type than has yet been dealt with.
Now my suggestion is this[,] that you should give me a brief paper with the pedigree for Biometrika, pointing out the problem you are attacking the creating of an albino race of dogs, and further indicating the need for collecting careful colour pedigrees of these dogs. This might be circulated in offprint to all known owners & you would soon have any number of pedigrees, if a request for them accompanied this offprint (I assume there is not yet a studbook for this dog?). From the material thus obtained we could use what we planned for the main paper, or publish separately a bigger treatment than will there be possible. I think further a reproduction of the dogs & this advertisement would enable you rapidly to dispose of any pups you may get from your bitches & recoup yourself for your outlay. If all are albinos, I should dispose of pups in pairs, and exact a promise of record & maintenance of purity i.e. albinism.
Yours K.P.
I have been much worried about the albino plates. They have come out not 10 p.c. but at least 50 p.c. worse than proofs & I have a big row on.’
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Sent toEdward Nettleship
10 Jan 1910
Description:
‘My dear Nettleship,
I do not at all agree with you about bubbles being pricked re these Pekingese spaniels (please tell me if that is the right description for photograph on plates). I think it a most valuable confirmation of results that we can get in the higher mammals like conclusions for those known for mice.
Now about the mice, there exist at least two cases – this in confidence & please don’t let it go further – in Weldon’s series of extracted albinos giving some coloured offspring. I cannot published [sic] these cases, because they would certainly be put down to carelessness in the record & the mating. But there they are & in default of any knowledge of what he thought about the matter I can do nothing but hope some day to report the exact crosses which led up to this result. Anyhow they weigh sufficiently on my mind for me to believe that the crossing of the extracted albinos is a gain & worth testing for every available species.
Further you have not the least idea how slender much of the work on rats & even mice is! Also please remember this: no one has worked on the pedigrees of these dogs scientifically & such pedigrees are of much value. Of your bitches cast only albino pups you will have evidence that albinism breeds true in a much higher type than has yet been dealt with.
Now my suggestion is this[,] that you should give me a brief paper with the pedigree for Biometrika, pointing out the problem you are attacking the creating of an albino race of dogs, and further indicating the need for collecting careful colour pedigrees of these dogs. This might be circulated in offprint to all known owners & you would soon have any number of pedigrees, if a request for them accompanied this offprint (I assume there is not yet a studbook for this dog?). From the material thus obtained we could use what we planned for the main paper, or publish separately a bigger treatment than will there be possible. I think further a reproduction of the dogs & this advertisement would enable you rapidly to dispose of any pups you may get from your bitches & recoup yourself for your outlay. If all are albinos, I should dispose of pups in pairs, and exact a promise of record & maintenance of purity i.e. albinism.
Yours K.P.
I have been much worried about the albino plates. They have come out not 10 p.c. but at least 50 p.c. worse than proofs & I have a big row on.’
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