His sarcastic review of Smith's "Introduction to Botany" in the "Edinburgh Review" a mistake as it was published before he could edit it, and that it was written years ago for another purpose. Stands by his remarks on its "delicacy", having found [Carl Ludwig] Willdenow's translated work ["The principles of botany"] unsuitable for "young ladies". Believes Smith incorrect on gases and that whilst odours may be products of natural bodies atmospheric air is not. About to embark on a mineralogical tour [of the Hebrides]. Has seen the "very splendid and costly "Hafod Tour"".