h CONTENTS. 



Letter from the Rev. Robert Barker, B. D. to John Jebb, AI.D, 

 F.R,S. p. 353 



XX. y^n j^ccount of the fenfittve ^laliiy of the Tree Averrhoa 

 Carambola. In a Letter from Robert Bruce, MX>, to Sir 

 Jofeph Banlis, Bart, P.R.S, p. 356 



XXI. j^n Account of fame Kxperments on the Lofs of JVeight in 

 Bodies on being ?nelted or heated. In a Letter from George 

 Fordyce, M.D. F.R,S. to Sir Jofeph Banks, Bart. P,R,S. 



p. 361 



XXI L Sketches and Dcfcriptions of three fimple Lijlruments for 



drawing Architecture and Machinery in PerfpeBive, By Mr. 



James Peacock ; communicated by Robert Myhie, Lfq, F.R.S, 



p«366 



XXIII. Experiments on j^ir. By Henry Cavendifh, Efq, 

 F.R.S. and A.S. p. 372 



XXIV. An Account of the Meafurement of aBafeon Hounflow- 

 Heath. By Major-General William Roy, F.R.S. and A.S, 



XXV. Abjlraci of a Regifer of the Barometer, 'Thermometer^ and 

 Rain, tf/ Lyndon, in Rutland, 1784. j5y Thomas Barker, 

 Efq, Afo of the Rain at South Lambeth, Surrey; and at 

 Selbourn and Fyfield, Hampfhire. Communicated by Thomas 

 White, Y.^Q^,F.R.S. p. 481 



