Encloses amended note of £372 for third edition of Origin. Provides details of the calculation of profits.
My Dear Sir
I enclose my amended note of hand for £372 for the 3
This, as far as I can judge, is the amount of
Moreover it must be borne in mind that it is not a mere rule of 3 sum to calculate profits of a book— Thus—the 3
I enter into these details to prevent any misunderstanding and hope I have been successful.
If we print any more editions I would prefer deferring the settlement untill the whole is disposed of when I could arrange the amount of
I remain | Dear Sir | Y
C. Darwin Esq
- f1 3141a.f1See letters to John Murray, 30 April  and 3 May .
- f2 3141a.f2According to the terms CD and Murray agreed upon for the publication of Origin, CD was to receive `
2 3 dsof the net proceeds of the edition—payable by note of hand at six months from the day of publication' (Correspondence vol. 7, letter from John Murray, 1 April 1859).
- f3 3141a.f3According to Murray's ledgers, Murray spent £45 on advertising the first edition of Origin, £60 4s. for the second, and £29 3s. 6d. for the third (see Peckham ed. 1959, pp. 775--6).
- f4 3141a.f4CD received £180 as his share of the profits for the first edition; Murray recorded having made £57 4s. 2d. `balance profit' (Peckham ed. 1959, p. 775).
- f5 3141a.f5The fourth edition of Origin was published in December 1866; CD received his share of the profits in September 1867 after all copies of the edition were sold (Peckham ed. 1959, pp. 776--7).