Sends jar of Chamouny honey made by bees that feed chiefly on 'Pinus larix', and specimen of 'Psora testacea' Hoffmann. [James] Dickson's 'Dentaria bulbifera' will not grow in his garden. Now has all of [Albrecht von] Haller's [(1708-1777)] anemones except for 'Anemone sylvestris' number 1150. Has not received Smith's differentia specifica of 'Lichen cucullatus, or 'Dianthus glaucus' Hudson, which he has found in Switzerland, would like it to be 'Potamogeton obtusum' . Exists as Smith's and the Linnean Society's delegate. Observations on the 'Potentilla opaca' and 'Potentilla villosa' following experiment planting them in pots and different soils. Urges Smith to follow botany rather than medicine. Lists plants growing in part of his garden he names "the Alps".
Postscript on recto of first folio indicates that Davall also sent box of lichens containing 'Lichen testaceus', and 'Lichen ciliatus', and possible 'Lichen aeruginosus' and 'Lichen common'.