Offers to experiment on the digestibility of chondrin and chlorophyll by Dionaea for CD.

Has noticed that painters depicting complex expressions give different expressions to the two sides of the face.

Reports negative results of his experiments on digestion of chlorophyll by Drosera and by animals. [See Insectivorous plants, p. 126.]

Sends references for chondrin.

Writes on the possible origin of serpent-worship.

Is glad CD does not think his view regarding the two sides of the face is erroneous.

Comments on his examination of slides [of milk casein?] sent by CD.

Surprised by CD’s finding that a drop of one per cent hydrochloric acid stops digestion of albumen by Drosera.

Encloses a tracing of a portrait of John Bunyan showing the differences of the two sides of the face.

Observations of effect of pepsin and hydrochloric acid on urea indicate that it is not digested [by Drosera].

Forwards a photograph he thought had been lost. Has noticed that the two sides of the face are often asymmetric in portrait busts and statues.

CD may keep the photograph of "the holy Mary of Egypt". TLB may have been led away by his imagination in thinking that one side of the face expressed repentance and the other devout joy.

Comments on David Ferrier’s observations on electrical stimulation of the brain. Extent of response relates to intensity of stimulus.

Crichton-Browne’s observations on the asymmetry of convolutions on the two sides of the brains of maniacs.

Regrets he has not given Zoonomia the attention it deserves. Informs CD that Erasmus Darwin may have anticipated a discovery about paralysis of vessels by exposure to heat [see Erasmus Darwin, p. 109].

Has tried in vain to find out about the influence of Erasmus Darwin on the administration of stimulants in fever.

Thanks for copy of Erasmus Darwin.