Thanks CL for his book [The student’s elements of geology (1871)].

Is correcting proofs [of Descent].

Comments on CL’s Principles of geology, 11th ed.

Discusses natural selection in man.

Comments on migration as a factor in evolution. Suggests pamphlet by August Weismann on the subject [Über den Einfluss der Isolierung (1872)].

Thanks him for interesting letter from a Mr Wood on heredity in fruit-trees.

Comments on enclosed discussion of S. American geology by Agassiz. Mentions elevation of Patagonia and glaciation.

Thanks CL for copy of Antiquity of man [4th ed. (1873)]; will read the modified or new parts.

Discusses apple specimens received from CL; reversion to crab state. Cites passage on subject in Variation.

Comments on letter from Mr Wood on inheritance in fruit-trees.

Would like to cross flowers of "Hawthornden" with many distinct varieties.

Will subscribe £25 towards F. A. Dohrn’s Zoological Station at Naples.

Comments on CL’s planned bequest to science. CD would do the same if he had fewer sons.

Discusses belief in immortality and a personal God.

Describes his holiday in Southampton.

Comments on papers of John Wesley Judd.

Discusses paper on volcanoes by J. W. Judd.

Comments on volcanoes of the S. American Cordillera.

Mentions paper by T. F. Jamieson ["Glacial period in N. Britain", Q. J. Geol. Soc. Lond. 30 (1874): 317–18].