CONTENTS, 
XIX. ^ Letter to the Right Honourable George 
Earl of Macclesfield, Trefident of the Royal 
Society, on the Advantage of taking the Meanoj 
of a Number of Obfervations, in paEtical Afro- 
T. Simpfon, F. ‘S’. 
XX. An Account of the Succefs of Agaric, ana 
the Fungus vinofus, in Amputations : By Mr. 
lames Ford, Surgeon, of Briftol. . P* 
XXI. Queries fent to a Friend in Conitantmople ; 
by Dr. Maty, F. R. S . ; and anfwered by his EX‘ 
cellency James Porter, Efq^ his Majejiys Am^ 
baffador at Conftantinople, and F.R. S: P- 9 ^* 
XXII. Extracts of F'lsco Letters to Thomas Hollis, 
Efq-, concerning the late Difeoveries at Hercula- 
XXIII of a Letter from a learned Gentleman 
of Naples, dated February ay, i/yy, concerning 
the Books and antient Writings dug out of the 
Ruins of an Edifice yiear the Site of the old City 
Herculaneum j to Monfgnor Ccrati, of Pila,. 
F. R. S. fent to Mr. Baker, F. R. S. and by 
him communicated', with a Lranfation John 
Locke, Efq; F.R. S. P-^^- 
XXIV. An Account of the fe-veral Earthquakes of 
late felt at Conflantiaople j by his Excellency 
Tames Porter, Efq-, his Majeftys Am baffador at 
that Flace j in a Letter to the Reverend Mr. 
Wetftcin, F. R. S. dated February 15* * 755 ^’ 
p. 115. 
XXV. Letters <?/' Henry Eeles, Efq, concerning the 
Caufe of the Afcent of V apour and Exhalation, 
• and thofe of Winds j and of the general Phatno- 
mena 
