To understand Leschenaultia pollination CD requires field observations in the native country.

Has observed two forms of cowslips, which he calls male and female. The same two forms are found in primroses.

Saw Salter’s Spirifer specimens; a very good proof of indefinite modifiability.

Beginning to think gap between Cambrian and Lower Silurian enormous.

Édouard Lartet to give paper before Geological Society ["On coexistence of man with certain extinct quadrupeds", Q. J. Geol. Soc. Lond. 16 (1859–60): 471–5].