Did not see description of 'Herniaria glabra' in "English Botany" otherwise would not have sent his paper on it to the Linnean Society, has asked [Thomas] Woodward to procure it for his opinion. Advances in his microscopic investigation into the fructification of 'Fucus': believes it possible to construct a generic character incorporating most of 'Fucus' that will be analogous to Linnaeus' sexual system, except for the "vapour", which is substituted for pollen. Explains his method, wishes others could make similar investigations in different locations and describes [Thomas] Velley's contributions. Observations on '[Fucus] bifurcatus'. Relationship of his book ["Nereis Britannica"] with reviewers and the public, [William] Withering has recommended it to [Carl Peter] Thunberg. Asks if Smith has any specimens of or information on 'Fucus natans' as it was described in "Tour of the Continent", does not believe Linnaeus' claim that it is the "most common vegetable in the world". Would like to compare 'Fucus selaginoides' with 'Fucus tamariscifolius'.

After discussion with [William] Withering, prior to publication of third edition of his ["Botanical arrangement"], believes that the two varieties of 'Ulex' are distinct species on account of the lengths of calyx. Reports his own observations and agrees with Withering, and that a repeated blunder with 'Ulex' has been passed down in every "Flora" since [John] Ray. Has submitted a paper on this [see RelatedMaterial below]. Character of 'Ulex elatior' and 'Ulex europaeus'. Delaying his remarks on the "curious animal" 'Medusa' until after more observations next summer.

Thanks for Smith's hospitality at Norwich. Discusses the 'Byssus barbata' figured in "English Botany": after viewing Lady Elizabeth Noel's specimen believes that [James] Sowerby's and [William] Withering's are different species. Believes that there is a oversight in the literature stating that 'Byssus fulva' is a 'B. barabata', compounded by Dillenius, [William] Hudson, [John] Ray, and [William] Withering all repeating this. Sends a drawing of 'Byssus fulva' [not extant] and makes general observations taken from "Flora Anglica" on the genus 'Byssus' and species 'B. fulva' and 'B. barbata'. Spent an evening with Hanbury Williams who remains cheerful but has given up parties.

Annoyed that the second edition of his "Nereis Britannica" was not presented to the Linnean Society, generally dissatisfied with the work but hopes it may inspire others. Surprised by [Dawson] Turner's abrupt conclusion to the "Hist. Fucorum". Received Lamoureux's essay on "Thalapiophytes", a complete arrangement of sea plants by order, published in "Annals du Museum National". Offers to send it to Smith as he believes that with the section on 'Filicus' in the last edition of Gmelin's "Systema [naturae]" it will simplify Smith's work for his "Flora". Has copies to sell of Lamoureux's "Histoire des Polypiers Coralligenus flexibles".