CONTENTS. 
Letter from the Rev . Robert Barker, B.D. ft? John Jebb, M.D. 
F.R.S. p. 353 
XX. An Account of the fenfitlve Quality of the Tree Averrhoa 
Carambola. In a Letter from Robert Bruce, M.D . to Sir 
Jofeph Banks, Bart. P.R.S. p. 356 
XXI. An Account of fome Experiments on the Lofs of Weight in 
Bodies on being melted or heated. In a Letter from George 
Fordyce, M.D. F.R.S. to Sir Jofeph Banks, Bart. P.R.S . 
P- 3 61 
XXII. Sketches and Defcriptions of three fmple Infruments for 
drawing Architecture and Machinery in Perfpe Clive. By Mr . 
James Peacock ; communicated by Robert Mylne, Efq. F.R.S . 
■ ■ P- 3 66 
XXIII. Experiments on Air. By Henry Cavendifh, Efq. 
F.R.S. and A.S. p. 372 
XXIV. An Account of the Meafurement of a Bafe on Hounflow- 
Heath. By Major-General William Roy, F.R.S. and A.S. 
P» 3 8 5 
XXV. Abfraft of a Regifer of the Barometer , Thermometer , and 
Rain , Lyndon, in Rutland, 1784. By Thomas Barker, 
Efq. Afo of the Rain at South Lambeth, Surrey; and at 
Selbourn and Fy field, Hampfhire. Communicated by Thomas 
White, Efq. F.R.S. p* 4 8 * 
