E. Warren to K. Pearson, [July-Sept.] 1902.- External URL
- Correspondence Details
-
Sent From (Definite): Ernest WarrenSent To (Definite): Karl PearsonDate: Between Jul and Sep 1902
- Current Holder(s)
-
Holder (Definite): University College London: Special Collections
- No links match your filters. Clear Filters
-
Sent fromErnest Warren
Between Jul and Sep 1902
Description:
‘Dear Prof. Pearson,
Many thanks for your letter.
The snails you sent me – I have not identified as yet, for the book I wished to refer to is unobtainable from the library at present: the library people saying they are making great alterations. They are very pretty little things and appear to feed on lettuce with great enjoyment. Of H. aspersa I have separated one minute individual from some 38 families. These I hope to breed up to maturity and then if they produce fertile eggs they must be self-fertilised. With these inds. I have placed one of the new species of snails and so labour is economized. The new snails are very variable in the tint of the shell and in some two inds. The prominent dark band is absent. I hope that these may produce families. If by any chance when the baby H. aspersa grow up they should copulate with the other species it would be very fine to have hybrid offspring.
The H. aspersa are too fertile! The families range from 45-179. I have some 80 families in all and it is a hopeless business to attempt to keep the families so large. Already I have reduced the majority of them to 100. What do you think of reducing them to 30? I should be very glad if you would kindly give me your opinion on this rather important point.
...’
-
Sent toKarl Pearson
Between Jul and Sep 1902
Description:
‘Dear Prof. Pearson,
Many thanks for your letter.
The snails you sent me – I have not identified as yet, for the book I wished to refer to is unobtainable from the library at present: the library people saying they are making great alterations. They are very pretty little things and appear to feed on lettuce with great enjoyment. Of H. aspersa I have separated one minute individual from some 38 families. These I hope to breed up to maturity and then if they produce fertile eggs they must be self-fertilised. With these inds. I have placed one of the new species of snails and so labour is economized. The new snails are very variable in the tint of the shell and in some two inds. The prominent dark band is absent. I hope that these may produce families. If by any chance when the baby H. aspersa grow up they should copulate with the other species it would be very fine to have hybrid offspring.
The H. aspersa are too fertile! The families range from 45-179. I have some 80 families in all and it is a hopeless business to attempt to keep the families so large. Already I have reduced the majority of them to 100. What do you think of reducing them to 30? I should be very glad if you would kindly give me your opinion on this rather important point.
...’
-
