An INDEX. 
?/rlght'^ Treatifi <?/ Navi- j Tears old }ornmth Teeth- 
gation recommended to\ N.233. p« 72.8. 
Seamen N. xip. p. 202. iOpium, its ufe among the 
Turks, taken in a large 
Quantity hy a Perfon with 
its enlivening EffeSis^ its 
iS Confequences, N. xzi. 
p. 2885 &c. How it ea- 
fes Fain, N. 222. p. 307, 
Opticks, a Piano Coov^ex 
Water-glafs. N. 219. p. 
Xi8. p. 5-40. An At' 
tempt to make a large con- 
cave Speculum. N. 228, 
p. 242. Optick-Nerve of 
the Sword Fi{h. N. 228. 
p. 5- 5- 1 . HowOhje^s come 
to he feen within a Sphs* 
rule of Water. N. 221. 
p. 285-. An Aerial Con^ 
cave Speculum. 221. 
p. 2 §6. See more in l^M- 
crofcopes. 
Orkney Ifles^ ftrange Beans 
cafl up hy the Sea upon 
them^ and how they may 
come thither from Jamai- 
ca. N. 222. p. 298. 
0\^arium 0^ a Woman unu* 
fuaSy large. N. 223. p. 
330. See Generation. 
Oyfters, their Slime Toung 
ones, N. 235-. p798,799. 
Negro- Boy dappeld ^witb 
white Spots, N. 235-. p. 
781. 
A Difcourfe of Nephrotomy, 
N. 213. p. 333. A dan^ 
gerous Operation. N. 223. 
P- 337. 
Stru^ure of a Nerve. N 2 1 5- . 
p. 38. Optick Nerve.»Sf^ 
Opticks. 
Nitre thought not fo neceffa^ 
ry to Fire. N. 219. p. 
219. 
Numbers. See Algehra In 
Mathematicks, 
Numeral Letters inverted 
in Greek Infcriptions. N. 
217. p. 96. 
Nymphsea Glandifera. N. 
225. p. 438. 
o 
O 
Jle. See Manufa^ures. 
Oily Juices. Seejui- 
ces. 
OJd Man in York{hire5i<59 
Tears of Age. N. 211. p. 
266. A farther ConfirmO' 
tioH of his Age. N. 228 p. 
543. A Maid married 
4t 5 1 has a Child at 
Ee eee e 2 
R Pal- 
