294 UNIVERSAL ERUDITION. 



proceed thofe dreams that uniting form rivers, 

 which, flowing with different rapidities, fometimes 

 form cataracts, and at laft pour their waters into 

 the fea : and it Ihows that the fea covers near 

 two-thirds of the globe, and bears different names 

 in different regions : the bed of the fea is only a 

 continuation of the furface of the earth, and has 

 like it various inequalities, heights and depths, 

 mountains and vallies, rocks, &c. Hydrology 

 confiders alfo the nature of the waters of the fea, 

 which is more or lefs fait or bitter in different 

 parts ; the motions of its waves, its continual 

 courfe from Eaft to Weft, its currents and tides, 

 its gulfs, whirlpools, and fathomlels depths. 



IX. After thefe general confiderations, geo- 

 graphy paffes to the examen of the four parts 

 of the world. The earth is divided, j. Into the 

 old world, which comprehends the three parts 

 that were known to the ancients, Afia, Africa 

 and Europe ; 2. The new world, that is America, 

 and 3. The unknown world, as the Terra Auf- 

 tralis, and other countries that have not hitherto 

 been penetrated by travellers. The earth has 

 been alfo divided according to the different fha- 

 dows : thus the inhabitants of the frigid zones 

 are called Perifcii , thofe of the temperate 

 zones, Heterofciij of the torrid zone, Am- 

 phifcii i and they who have no fhadow at 

 noon-day, the fun being directly in their zenith, 

 Afcii. We muft here obferve by the way, 

 that geographers regard in their operations the 



north, 



