a 
hy BED. SE 
E, 
Ecliptic, the caufe of the variation of its obliquity, 173. 
EleGtricity, obfervations on it, 189. 
Epidydimis, compofed of a fingle tube, gor. 
F. 
Farina of plants, conjectures concerning its ule, 279. ue. 
Fetus, its fituation in the womb, 422. 
Force of a body in motion, proportionable to its velocity, 
64. 
Force of bodies in motion, 90. &c. 
Fracture of the Tendo Achillis, its cure, 450+ &c- 
G. 
Gravity (of) 42. 
——— a power inherent in matter, 52. 
———the refemblance betwixt it and magnetifin, 111. 
——-—owing to the continued and regular operation of an 
intelligent caufe upon matter, 15. 
—Theorems concerning the laws thereof towards 7upi- 
ter, 188. 
Gray (James) of the meafares of Scot/and, compared with 
thofe of Exg/and, 200. 
Grew (Dr Nenemian) the firt who taught that female 
plants were impregnated by the farina of the male, 213. 
H 
Hartfcll Spaw, Experiments and obfervations upon it, 34%. 
ftrongeft ‘in a wet feafon, and weakeft in a 
dry one; 354. 
what difeafes cured by it, 353, and 364. 
—-———— Directions how to ufe it, 365. 
—— 
Heart, its motion flower in fleep, and why, 437- 
Home (the Honourable Henry) on the laws of motion, I. 
HorsesurcnH (Dr Witrram) his experiments and obferva- 
tions on the Hartfe/! Spaw, 341, 
