Mr. Pafchal to Mr. Ray. 275 



Nature, fuch as, firft, Gravity^ by which I u nder - 

 ftand the Centripeta in the Parts of a Planet, whe- 

 ther united, or to fome certain Diftance feparated From 

 it. This feems to be a natural and neceflary Refult 

 from fuch a Plenitude as is named above. Secondly, 

 the Order, Diftances, Motions, which their Regu- 

 larity in the Planetary Syftem of the Planets, whe- 

 ther primary orfecondary, being and moving therein. 

 Thirdly, thofe Mftus Aimofphterte^ or Air-Tides, to 

 which my laft referred, and thofe fundry Variations 

 of the Air, and Effe£ts confidered in Meteorology, 

 which poffibly may be found to owe their Original to,, 

 and to depend upon, thofe oppofite Preflures pro- 

 ceeding from Parts Central and Circumferential, a&> 

 ing and re-a6fcing upon one another. As for the Vi- 

 gour I noted to attend the Diurnal Motion of the 

 Earth about its Axis, toward the Moon, in the South- 

 ing and Anti-Southing Senaries, I am by many Ob- 

 fervations inclined to think that it comes from the 

 terreftrial Effluvia in thofe Times at liberty to flow 

 forth more plentifully. And confequently the Abate- 

 ment thereof in the Ebbing Senaries is from Advan- 

 tage then coming to the Circumferential Preflures, at 

 liberty to reprefs thefe EfHuxes from within the Earth, 



Fourthly, Culinary and Vital Fires, both which 

 Kinds move a Centro $ particularly Life, as to its 

 Nature, Original, Progrefs, State fane or morhofe^ 

 Decay and Diflblution, may have fome Light from a 

 nearer and accurate Infpe&ion into thefe. Sir, my 

 narrow, and but late Obfervation, and that much in- 

 terrupted, fupplies me with enough to make a Vo- 

 lume upon this noble Subject. 



But if there be any thing worth Regard in what 

 I here offer, he to whom I write will fee it without 

 large Difcourfes. And if there be nothing, I have 

 in this already faid too much. J am, &c. 



Chedfey, near Bridgwater, Jan. 20. 169^ 



N n z 



This 



