I N D E X.‘ 
Penfylvania Pheafant, a Letter from Mr. Geo. Edwards to 
Mr .P eter Collinfon concerning it and the Otis minor, p.499. 
Pheafant of Penfylvania defcribed, by Mr. Geo. Edwards , 
p. 499. 
Plants , Catalogue of Fifty, from Chelfea , for 1752, pre- 
fented to the R. Society by Dr. JohnWilmer , p. no. 
Catalogue of Fifty, from Chelfea , for 1753, pre- 
fented to the R. Society by Dr. John JVilmer , p. 52 8. 
Platina del Pinto , experimental Examination of it, by Dr. 
William Lewis , p. 6 38. 
Pococke (Rev. Richard , L L. D.) further Account of the 
Giants Caufeway , in the County of Antrim in Ireland , 
p. 22 6. 
on the fame Subjed, in a Letter to the Rev. Pho.. 
Birch , D. D. Sec. R. S. p. 238. 
Portici , Antiquities newly dilcovered there, p. 825. 
Preceffion of the Equinoxes, a Treatife thereon, by M. De 
St. Jaques Silvabelle , p. 385. 
Pringle {Ox. John), An Account of the Gaol-Fever with 
which feveral Perlons were feized in Newgate , y». 42. 
■ Account of a remarkable Fragility, Flexibility, and 
Diflolution, of the Bones, p. 297. 
Pyrometer, Defcription of a new one, with a Table of Ex- 
periments made therewith, bv Mr. John Smeaton, p. ^98. 
R. 
/fa/# fallen in 5 . Carolina, from Jan. 1738 to Decern. 1752, 
by Dr. James Lining , />. 284. 
ifajj of Light, Difcourle concerning their different Refran- 
gibility, by Mr. P. Melvil, p. 261. 
Ref railing Telefcopes, an Improvement of them, by Mr. 
J. Dollond, p. 103. 
Refrangibility (different) of the Rays of Light, Monf. Cour- 
tivron's and Mr. Melvil s Notions about it compared, 
p. 776. 
Richman (Profefior), Anfwcr to Dr. Lining's Query con- 
cerning his Death, by Mr. IVm. Wat f on, p. 765. 
Robertfcn (Mr. John), the Conftrudion of the Logarithmic 
Lines on Gunter's Scale, p. p6. 
S. 
