Thanks CD for assistance concerning sponge specimens. Mentions Englishmen who have sent specimens. J. S. Bowerbank has not answered requests.

Sends articles dealing with sponges and Medusae. Cites passages for CD to read. Suggests passages from Entwicklungsgeschichte der Siphonophoren [1869].

Describes meeting with Sars and his trip to Norway.

Asks CD to send 5th ed. of Origin so Mlle Royer can use it in her work. Regret they have upset CD to the extent that he would reproach them so untowardly.

On endemic flora and fauna of Portugal.