stud's; xi. 173 



finite variety of expofures ; of cold toward the 

 North, of heat to the South, of rain to the Weft, 

 of drought to the Eaft; without taking into the 

 account the different reflections of heat in fands, 

 rocks, bottoms of vallies, and lakes, which modify 

 them a thoufand various ways. 



We muft proceed farther to obferve ; and who 

 can do it without profound admiration ? that the 

 feafon of the maturity of mod volatile feeds takes 

 place toward the commencement of Autumn ; and 

 that, from an effect of the univerfal Intelligence, 

 which conftrains all the parts of Nature to act in 

 concert, then it is that we have the moft violent 

 gales of wind, about the end of September or be- 

 ginning of October, called the equinoctial winds. 

 Thefe winds blow in all parts of the Continents, 

 from the bofom of the feas to the mountains which 

 are in correfpondence with them. Not only do 

 they convey thither the volatile grains which have 

 then attained to a ftate of maturity ;• but likewife 

 blend with thefe thick clouds of dult, which they 

 carry off from lands dried up by the burning heats 

 of Summer, and particularly from the fhores of 

 the Sea, where the inceflant motion of the billows, 

 which there break, and continually tofs the pebbly 

 flrand backward "and forward, reduce the hardèft 

 bodies to an impalpable powder, 



Thofe 



