William Clowes [printer for J. Murray] estimates that Variation will come to a first volume of 648 pages and a second volume of 624 pages – which is too much for volumes the same size as Origin. Murray proposes a larger size.

CD should not be discouraged by the bulk of Variation. CD’s suggestion to print technical details in small type is good.

Murray has sent MS to a "man of letters and good information" as an experiment to test its effect. Has no intention of throwing up publication.

JM will publish [Variation] "coute qui coute", paying CD half the profits.

Thinks he can count on 500 purchases of what he calls the "Pièces Justificatives" of the Origin and will print 750 copies.

His literary friend found it "difficult of digestion".

First portion of Variation MS has been set up. Murray will not decide on number to be printed until he has read a good portion. The agreement applies only to the first edition.