Concerning death of August Schleicher.

Suggests Englishmen who might provide sponge specimens.

Mentions views of Sars on species.

EH’s work on Siphonophora.

Comments on new edition of EH’s book [Natürliche Schöpfungsgeschichte, 2d ed. (1870)].

Mentions his own book [Descent].

Visit by Kölliker.

Comments on Descent.

EH’s refusal of position at Vienna.

Refers to priest who believes in "our ape-like progenitors".

EH’s work on sponges.

Pangenesis.

Describes new edition of Origin [6th]

and his work on plant crossing.

Comments on EH’s criticism of authors in third edition of Natürliche Schöpfungsgeschichte [1872].

Discusses book by H. C. Bastian [The beginnings of life (1872)].

Comments on EH’s forthcoming [Die Kalkschwämme (1872)].

Thinks EH is working much too hard.

On EH’s Die Kalkschwämme [1872].

Comments on EH’s Natürliche Schöpfungsgeschichte [4th ed.].

Has written paper on rudimentary structures ["Complemental males of certain cirripedes", (1873) Collected papers 2: 177–82].

Edward Morse thinks brachiopods should be classed with annelids ["The systematic position of the Brachiopoda", Proc. Boston Soc. Nat. Hist. 15 (1873): 315–73].

Thanks for 5th edition of his book [Natürliche] Schöpfungsgeschichte.

CD continues with his experiments on the digestive power of plants, which is much like that of mammals.

Is also preparing a revised edition of Descent.

Would welcome hearing more of his ideas about Pangenesis.

Postscript about Anthropogenie, which has just arrived. EH’s astonishing productivity.

Comments on review of EH’s Anthropogenie [1874].

Mentions recent work of Huxley and other scientists.

Thanks for F. v. Hellwald [Culturgeschichte (1875)].