486 INDEX. 
p. 154. Contract a bad fmell by a reabforption of fixed 
air incorporated with ether, p. 156. 
Fieldfare , where they breed, p. 313, 314. 
Fixed air how produced, p. 148. Its effects upon fer- 
menting liquors, p. 149. Does not inftantly mix with 
common air, p. 1 50. How incorporated with water, 
p. 151,152. May be of the nature of an acid, p. 153. 
Is not abl'orbcd by ice, p. 1 54. Fatal to animals and 
vegetables, p. 157. Cannot fufficiently be retained in 
a bladder, p. 158. May be rendered immifcible with 
water, p. 160, 161. Tends to correct putrid air, 
p. 204, 205. Serviceable in putrid diforders, p. 206. 
2 57 - 
Flounders have their mouths turned different ways, p. 306. 
Fogs always occafion a pofitive de&ricity in the air, 
p. 139. Attended with the fmell of an excited glafs 
tube, p. 140. How their influence on electrical balls 
may be meafured, ibid, and p. 145, 146. 
Forjler , Mr. John Reinhold, his account of the roots ufed 
by the Indians at Hudfon’s bay to dye porcupine quills, 
p. 54. His account of feveral quadrupeds from Hud- 
fon’s bay, p. 370. And of birds from the fame place, 
p. 382. His obfervation on the pectinated toes of 
feveral fpecies of the grous kind, p. 397. His Latin 
defcriptions of fome fcarce birds from Hudfon’s bay, 
p. 423 - 
Fortune , fee Sors. 
Franklyn , Dr. Benjamin, his thoughts on the vegetable 
creation, p. 199. On the attraction of fire by plants, 
P- 2 34 * 
Frefh water y manner of diftilling it from fait water at fea, 
p. 90. 
G. 
Geefe wild, the higheft fliers of all birds, p. 268. 
George 
