CeO Niwas IN PS. vit 
XXIX. An Account of a remarkable Froft on the 23d of June, 
1783. In a Letter from the Rev. Sir John Cullum, Bart. 
F. R. S..and S. A. to Sir Jofeph Banks, Bart. P. R. S. 
p- 416 
XXX. On a new Method of preparing a Teft Liquor to fhew the 
Prefence of Acids and Alkalies in chemical Mixtures. By Mr. 
James Watt, Engineer; communicated by Sir Jofeph Banks, . 
Here. PER. Ss. Pp. 419. 
XXXI. An Account of a new Plant, of the Order of Fungi. 
By Thomas Woodward, Efq; communicated by Sir Joleph 
Banks, Bart. P. R. S. Bates 
XXXII. Experiments to inveftigate the Variation of Local Heat. 
By James Six, E/g.; communicated by the Rev. Francis 
Wollafton, LL.B. F. R.S. poze 
XXXII. Account of fome Obfervations tending to inveftigate the 
Confiruction of the Heavens. By William Herfchel, Ef. 
«PRLS. Cp. 437. 
XXXIV... An Account of a new Species of the Bark-Tree, found 
in the Ifand of St. Lucia. By Mr. George Davidfon; com-- 
municated by Donald Monro, M. D. Phyfician to the Army, 
eR. S. pe age: 
EXXV. An Account of an Obfervation of the Meteor of Augutt 
18, 1783, made on Hewit Common zear York. In a Letter 
Jrom Nathaniel Pigott, E/g. F. R.S. to the Reverend Nevil- 
Matkelyne, D. D. F. R. S..and Aftronomer Royal. p. 457 
XXXVI. Odfervations of the Comet of 1783. In a Letter from 
| Edward Pigott, E/q. to the Rev. Nevil Mafkelyne, D. D. 
FP. R. S. and dftronomer Royal. p. 460 
XXXVII. Experiments on mixing Gold with Tin. In a Letter 
Jrom Mr. Stanefby Alchorne, rt his Majefty’s Mint, to Peter 
Woulfe, Lf. F. R. S* pe 403 
4 MXAY IIT. 
