Receiving notes on inbreeding from T. T. Wright, who has long experience with the subject.

Reports six-toed pup.

Discusses the development of horns in reindeer and other deer.

Writing to friends on CD’s behalf about deer: T. T. Wright, Archibald McNeill.

Forwards A. McNeill’s letter on deer horns. McNeill wrote portion on deerhounds in William Scrope’s book [The art of deer-stalking (1838)].

Forwards reply from [Peter Robertson] head forester for Marquis of Breadalbane on development of horns in Scottish deer.

Differences in size and weight in deerhounds, with tables of comparative weights according to sex. Promises information on weights of deerhound puppies. Effects of cross- and inbreeding.

Suggests that Cupples weigh puppies from one week old, rather than two weeks old.

Will look for sex ratio statistics.

Will weigh pups.

Deerhound breeding;

wolves.

Note on proportion of sexes born in sheep.

On proportion of sexes in litters of dogs.

Wishes Cupples had said something about health. Sends regards to Mrs Cupples.

Proportion of sexes in rats.

Weight statistics on deerhound puppies born 23 Sept 1869.

Thanks GC for his assistance. "The data for all that I have to say about the Scotch deer-hound are, owing to you, almost sufficient; and much better data than I have got in many other cases." [See Descent 2: 260.]

Believes Dr Stirling would be compelled to admit some change in "the famous protoplasm in our domestic races, both in regard to the structure of the body & qualities of the mind".