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Sect. V,] 



GEOGRAPHY. 



139 



t 



he nature of the bed and of the borders ; the transpa- 



iolour, temperature, and quality of the water ; the 



rency, c 



affluent streams and springs ; the outlets, the currents ; 

 the climate, soil, and vegetation of the basins ; the heigbt 

 and nature of the surrounding hills when Ihere are any ; 

 the prevailing winds ; the mean ratio of evaporation com- 

 pared with the quantity of water supplied ; and any parti- 



cular phenomena; the navigation and fisheries 



of 



■«' i ; 





TT^!' 



J ins 



1^4-i-.- 



.tter 



lake ; formation and desiccation of lakes/' 



point, depending as it mainly does on the relatiTe eleva 



country 



/. 



sa: 



tion or subsidence of the 

 almost to belong to the kindred science of geologj'. and 

 yet it bears so immediately on the physical configuration 

 and geographical features of the country, that it may 



fairly be mentioned in this place. 

 Connected with the question of lak( 



less important features of lagoons 



smaller hollows called ponds ; the extent of these 



marshes and lagoons should be ascertained, also whether 



and 



are the scarcely 



and 





t 



connected with the sea or not ; and what poi tioiis of them 

 become dry and passable during the sunniier or other 

 periods of the year. Peat bogs, in many cases the re- 

 mains of former lakes, may also be classed amongst these 

 features, and their extent and depth and qualities should 

 be ascertained. 



6. Line of coast, Sfc. — This may be indeed said to be 



fhp TiPPiilinr nrnvinpp nf ihp- njivnl nffipf*r ! but aS forming 



one of the chief boundaries of those c^reat geographical 



subdivisions, the details of which we have been here 

 alluding to, we must not omit a brief allusion to some 

 of its most important features. And 1st, with regard 



Z- f 



