INDEX. 



E. 



Ecl'ptic, the canTe of the variation of its obliquity, 191, 

 Eledricity, oblc vations on it, 309. 

 Epidydimis^ compofeJ of a fingle tubcj 453. 



F. 

 Farina oi plants, cOnje<5>ures cnncerning its ufe, 514. e^f. 

 Foetus, its fituation in the womb, 476. 

 Force of a body in motion, proportionable to its velocity, 



72. 

 Forte of bodies in tB0ti'6n, 161. ifc. 

 Fradure of the fcndo Jchillis, its cure, 450. ife. 



G. 



Gravity (of) 47- 



», I . a power inherent in matter, $8. 



~ .■ ■ the refemblancc betwixt it and magcetifm, 12;. 



-<-- owing to the continued and regular operation of an 



iiitelligent caul'e upon matter, 130. 

 ■— ! Theorems concerning the laws thereof towards Ju- 



piter, 207. 

 Gray (Jameb) of the meafures of Scotland, compared with 



thoJe of England, "22 3. 

 Crew (Dr Nehemiah) the firft who taught that female 



plants were impregnated by x.ht farina ol the male, 237. 



H. 



JH ari/t' 'I S/anv jExpsnments and obfervations upon it, 384. 



» ■ ftrongelt in a wet feafon, and weakcft in a 



dry one, 398. 



■ what difeafes cured by it, 408 and 409. 



■ Direflions how to ufe it, /) 1 3. 



Heart, its motion flov;erin fleep and why, 493. 

 Home (fhe Hon. H^nry) on the laws of motion r. 

 H<^)ireburgh (Dr William) his experiments and obfervations 



on the Han/ell Spaiu, 384, 



