512 INDEX. 
p. 457. Not attended with complete fuccefs, p. 4 58. 
Probable caufe of the difappointment, p. 459. 
0/7, quietnefs of if on agitated water, p. 448. Singular 
phenomena exhibited by oil, when dropped on a large 
furface of water, p. 450. A natural repulfion be- 
tween the particles of oil, p. 453. No attraction be- 
tween oil and watej*, ibid. T-wo Dutch Eaft India 
lhips preferved in a dorm, by letting out oil into the 
fea, p. 456. 
Os humeri , fingular cafe of a woman enjoying the ufe of 
her right arm after the head of os humeri was cut 
awa y> P- 353 • 
P. . 
Pallas , Mr. difcovery of native iron in Siberia, p. 461. 
Paper , manner of manufacturing it in Hindodan, p. 100: 
Pekin , agronomical obfervations made there, p. 31 — 45. 
Pemberton , Dr. mifintepreted by Caftiiione, p. 153. 
Percival , Dr. on the date of population in Manchelter 
and other adjacent places, p. 54. 
Petit, his opinion concerning the fundus of the uterus 
verified, p.478. 
Petrified Jlratum formed by Matlock waters, p. 124 — 127. 
Pificataqua harbour , latitude of entrance of, p. 174. 
Wrong laid down in mod maps, ibid. 
Plan for the improvement of the ftudy of electricity, 
P- 430, 43i- 
Plants from Clielfea gardens, catalogue of, p. 302 — 309. 
Pliny , the elder, mentions the power of oil in {tilling 
waves, as known to the divers in his time, p ; 446. 
Population , obfervations on the date of, in Manchelter 
and adjacent places, p. 54 — 66. Rapid encreafe of, 
in Leverpool, p. 57. Large towns injurious to it, 
p. 59- 
Portfimouth , in North America, aftronomical obfervations 
made there, p» 183* Latitude of, ibid. Longitude, 
P* l8 9* 
Pot-afij 
