Reports two observations on crossing in dogs: the preservation of both pure types in the offspring of a pointer and a setter, and the influence of a first mating with a mongrel on the progeny of a Barbary bitch and a subsequent Barbary male.

WSD is pleased that CD approves his index draft [for Variation]; notes his objection to long list of references under "Dogs" and will try to find a principle for shortening it. He has not indexed all authors’ names; is this practice satisfactory?