Thanks JVC for his biography [of CD].
Has almost finished first proofs of Variation.
Has difficulty in answering JVC’s queries about dogs because of differences in German names and breeds. Refers him to A. E. Brehm’s Illustrirtes Thierleben [1868] and, on pigeons, to Gottlob Neumeister’s book [Das Ganze der Taubenzucht (1837)].
Hopes JVC is not discouraged by first volume. Thinks second will be more interesting.