Their enumeration [of forms of Lythrum?] is invaluable. He will write later to explain what he is trying to prove about Lythrum through laborious crosses.

Asks for flowers of both forms of Hottonia to measure pollen and compare stigmas.

Sends observations on seeds of Pulmonaria officinalis requested by CD.

Observations for CD on oxlips, which she finds never grow near cowslips or primroses.

Quotes Botanical Magazine on Erica massoni. Its branches terminate in large umbels of flowers that are extremely viscous and entrap insects.

Asks her to see whether the flowers or leaves of Erica massoni are noted as glutinous in the Botanical Magazine.

Inquires about the pods of peony: are they brilliantly coloured and do birds eat them?

Asks her to observe whether her dog exposes his teeth when barking and to think of any facts about expression in her birds.

Aggressive behaviour of dogs and horses.

Expression in horses.

Crying in babies.

Describes a pouting expression in a 3½–year-old child.

Displays in turkeys.

Asks her to probe worm-holes on grassy slopes with a knitting needle to ascertain whether they come out at right angles to the slope or to the horizon.

Gives results of probing worm-holes with wire.

Thanks for observations on angles of worm-holes on slopes. William Darwin is observing at Stonehenge. She is worth her weight in gold.

Describes earthworm experiments. She has measured depth of mould in various locales, e.g., on ridges and furrows of an old ploughed field.

Worm-casts on a ridged hill.

Sends further details on Pinguicula reference.

Sends specimens of Pinguicula with insects adhering. [See Insectivorous plants, p. 369.]

Can think of no suggestion to send to Mrs Forsyth. "The best plan is to read, think and speculate and then some suggestion or doubt will occur which can be determined or verified out of observation."