Sending fifth volume of "Transactions of the Royal Scientific Society of Uppsala", via Dr Avent, who is returning to England; wishes there was greater exchange of correspondence between England and Sweden. Smith unanimously elected to Royal Society. Concerned to hear that Smith's letter to a German on subject of sale of Linnaean collections has been disclosed, but gratified Smith wishes he [Acrel] be cleared of all impropriety. Clearance of his debts with Smith. Introduces Dr Bierchen.