Called to wish him a good journey and to offer his compliments to Sir William and Lady Herschel.

Thanks for letters from Smith and William Smith regarding the sale of his picture collection; their purchase by the [Liverpool Royal] Institution is not yet settled but will take up William Smith's offer of assistance in selling them if they do not. Sending Smith a copy of his pamphlet and asks his opinion, which he implicitly relies on; defends himself against possible detractors.

Thanks for turkey. [Aylmer Bourke] Lambert unable to write as suffering from a toothache. A vote at the Linnean Society led by Lambert failed in removing the "tanners' and some other house", smell so offensive that [William George] Maton had to leave before dinner was over. A mild winter. Describes attractions of Boyton House, Wiltshire, including gardens. Praises Smith's "sublime hymns". Discusses poetry including "odditys [sic]"of Lord Byron and Lord [Thomas] Erskine's [1st Baron Erskine (1750-1823), lord chancellor] poem "The Farmer's Vision". Sir Joseph [Banks] ill, discussion of [Sarah Sophia] Banks' will [(1744-1818), sister of Banks and collector of antiquarian items, ]. Has seen Lady Banks and the Countess Bentinck, and Maton in connection with Banks' health.

JH's father and mother will call on WW during visit to Bath, scheduled after wedding of JH's cousin. Spent three weeks meeting science luminaries in Paris. Notes continuity of scientific endeavors there over three generations.

Would he please forward the letters and papers which he left behind.

Relates the details of his accident. Gives equations and theorems.

Is anxious to hear how his wounds are progressing. Will not be able to come to town yet owing to various circumstances. New chemical experiments.

His father [Franz Karl Mertens] suffering from a "tedious & painfull" indisposition of his eyes, so on his father's behalf thanks Smith for present of willow cuttings, but as only nine of the eighteen specimens have grown requests fresh replacements and asks that they to be sent via his brother-in-law Theodore Zimmermann. Lists those willows that grew at end of letter: 'Salix malifolia', 'Salix russelliana', 'Salix acuminata', 'Salix lanceolata', 'Salix hirta', 'Salix rubra', 'Salix purpurea', 'Salix decipiens', and 'Salix phylicifolia'.

No summary available.

Writes on occasion of their wedding anniversary: her respect, affection, and happiness in Smith all superior to what they were then. Thanks for good news Smith sent from [Thomas] Platt [(d 1842), one of John Sibthorp's executors, supervised the publication of "Flora Graeca"] . Recommends for Smith's breakfast reading the anecdotes of Mr Emlyn, the "worthy dissenting minister" of Lowestoft, in the "History of Lowestoft"; relates some of them.

[Draft or copy]

Hopes Smith recovered from the indisposition he suffered when he "honoured our town [Liverpool] with [his] instructive visit". Forced to give up botanical part of his Brazilian collections so as to focus on the zoological side, which is his main interest anyway, but anxious that botany should benefit from his collecting in places where no one has been but himself; offers to present any able botanist with collection of his duplicates, on condition of results being presented to Linnean Society; asks Smith to propose it to any of his competent botanical friends.

Smith's candidature for Botany Professorship at Cambridge University. [James Henry] Monk's [(1784-1856) Regius Professor of Greek, Cambridge] attack on Smith in "Quarterly Review". Believes Smith will never carry the professorship or lectureship, due in part to changing circumstances in professorships at Sidney Sussex College. Observes he and Sir Joseph Banks were negligent in supporting James Donn [(1758-1813)] and [Arthur] Biggs [(1765-1848)] for curatorship of Botanic Garden without fully knowing their religious persuasions.

Has dispatched the tourmaline. His chemical experiments. Circulating functions solving chance problems. [Letter postmarked 1819-3-29.]

Happy to draw up a paper of "Plantae Brasilienses"; does not anticipate it being very difficult, having the Linnaean herbarium, all of Rublet's specimens, and Commerson's; impossible for anyone to do such a work without seeing those specimens. However, his next work must "absolutely be a British Flora in English long promised", so cannot undertake Swainson's work at present, and is also pressed by "Flora Graeca". Believes the 'Graminae' would be the most difficult part.

Encloses specimen of handwriting of Linnaeus. Cannot think of any other person, except [Robert] Brown, "who cannot do half he is engaged in", competent enough to do what Swainson wants, "as it ought to be done".

Introducing her son Henri.

Has returned from Paris. Comments on Lady Smith's "practical defense" of Smith's cause in the Cambridge dispute. Is sending part 10 of [Alexander von] Humboldt and [Aimé Bonpland's] "Nova genera". Wants introductions to [Thomas William] Coke for Mr Williams, an American friend, brother of Samuel Williams of Finsbury Square, "the greatest banker from America in Europe", and Mr Paine, a cousin of Williams. Elected FLS.

Has had some more tourmaline sent. Gives some more equations. Chemical experiments.

Criticism of [James Henry] Monk's [(1784-1856), bishop of Gloucester and Bristol and classical scholar] "Hippolytus" [(1811)]; criticism thereof.

Unable to come to dinner on Saturday but hopes to see him in the evening.

Made apparatus for showing rings between 'two Tourmalines.' JH's process for making hyposulfurous acid. Praises W. H. Wollaston's analysis of CB's 'Tonquinate.'