Summary

Thanks CD for his photograph.

Sends a paper ["Über das Holz einiger um Desterro wachsender Kletterpflanzen", Botanische Zeitung 24 (1866): 57–60, 65–9].

Believes species of sponge with different mineral spiculae are descended from a form with organic spiculae.

Reports observations on motions of Linum stalks following the sun.

Regards Anelasma as a connecting form between cirripedes and Rhizocephala.