Unable to go to London tomorrow as he is suffering from one of his "old inflammatory attacks on the lungs", but hopes to be well enough to attend Linnean Society anniversary meeting by staying at Mr [Thomas] Forster's in Hackney, [Middlesex], for a week beforehand. [Thomas] Brightwell [(1787-1868), entomologist] will attend Society on Tuesday to be admitted, will bring [Joseph] Sabine's paper.

WS asks that his name be given to the Astronomical Society and attaches a copy of observation of double stars made at Dorpat. WS also inquires about copies he had previously sent to William Herschel and to the R.S.L., offering to replace them if they have been lost.