INDEX. 
N. 
4 
Negroy white, fhewn before the Royal Society, an account 
ofhim, p. 45. His parents black, 46. More inftances of 
fuch deviation in colour, 47. Wafer’s account of white 
people on the Ifthmus of America, 50. 
Nervous fome reflexions on it, p. 87. 
Newton, Sir Ifaac, his obfervation concerning the caufe of 
colours in natural bodies, p. 10, 
P. 
Paitoni, John Baptifl:, phyfician at Venice, communicates 
an uncommon anatomical obfervation, p. 79. 
Parfons, Dr. his account of the Pholas Conoi'des, p. i. 
Of the white negro fhewn before the Royal Society, 
P* 45 * 
Pheafant, a beautiful Chinefe one deferibed, p. 88. 
Phelas Conoides, or wood-mufcle, a defeription of it, p. 2. 
Its lodgment in the wood, p. 3. 
Plants, of their fexes, p. 258. Catalogue of the fifty 
from Chelfea garden, prefented to the Royal Society, for 
the year 1764, p. 91. fee Vegetables. 
^adrant, Hadley’s, recommended, p. 70. A particular 
application of it in fome cafes of pilotage, propofed 
and illuftrated, p. 71. 
R. 
Rain, how produced, p. 163. 
Rattle- fnakes, their bite cured by fait, p. 244. 
Refpiration, fome reflexions on it, p. 172. 
Rhubarb, the true fort, defeription of fome plants of it 
raifed in Britain, p. 290. 
Rye, of a falfe or vitiated kind, a difeafe from the eating 
of it deferibed, p. io8. Method of cure, p. 123. 
Salt, 
