Sends a copy of his book on Swiss ants [Les fourmis de la Suisse (1874)]. Notes points and passages that he thinks will interest CD.

Thanks AHF for his book on ants of Switzerland;

recommends reading Thomas Belt’s Naturalist in Nicaragua [1874].

Writes about AHF’s book on Swiss ants.

Recounts his own observations on ants carrying cocoons.

Thanks for CD’s favourable opinion of his book [Les fourmis de la Suisse (1874)]. Habits of ants; observations on their carrying empty eggs.

Thanks for the present of the book [Thomas Belt, The naturalist in Nicaragua (1874)].