1 N £> £ X. 
Scvis (Dr. John) Letter to James Short , M. A. concerning 
Mr. Gafcoigne's Invention of the Micrometer, p . 1 90. 
— — Obfervations of the Tranfit of Mercury over the Sun, 
May 6, 1753, p. 193. 
— Aftronomical Obfervations made by him and James 
Short , M. A. p. 301. 
Birch (Rev. Thomas, D. D. Seer. R. S.), additional Re- 
mark to one of Mr. IV. Watfon's, in his Account of the 
Abbe Nollet* s Letter concerning Eledricity, p. 484. 
Bond (Dr. John), Experiments and Obfervations on the 
Copper-Springs at Wicklow in Ireland , in a Letter to 
Sir Peter Thompfon, Knight, p. 181. 
Bones foftened and diftorted, an Account of, by Dr. Hofiy, 
of Paris , p. 26. 
a remarkable Inftance of their Fragility, Flexibility, 
and Diffolution, communicated by Dr. John Pringle , 
p. 297. 
of an Elephant, found at Leyfdown , in the Ifle of 
Sheppey , p. 626. 
Bonnet (Monf. of Geneva ), Extrad of his Letter to Dr. 
John Clephane , concerning Inoculation, p. 818. 
Borlafe (Rev. Mr. William ), concerning the great Altera- 
tions which the Iflands of Sylley have undergone fince the 
Time of the Antients, p. 55. 
an Account of a Storm of Thunder and Lightning 
near Ludgvan in Cornwall, p. 86. 
Bofe (Profeflfor), Excrad of his Letter to the Right Ho- 
nourable the Earl of Macclesfield , Pref. R. S. p. 358. 
Boze (Monf.), Extrad of his Hiftory of the Emperor 
Hetricus, explained and illuftrated by Medals, by Dr. 
John Ward, p. 124. 
Brakenridge (Rev. William , D. D.), Letter to Geo. Lewis 
Scot , Efq*, concerning the Number of Inhabitants within 
the London Bills of Mortality, p. 788. 
Brander (Mr. Gufiavus), Letter to Smart Lethieullier, Efq; 
with a DilTertation on the Belemnites , p. 803. 
Brijlol, the Number of People in that City calculated by 
John Browning , Efq; p. 217. 
5 T 2 Browning ; 
