And parts adjacent* 369 



fea, that may be filled with fea-water, which, on 

 beino; exhaled, leaves the fait behind. The whole in- 

 clofure belonging to this eftablimment is a large fquare, 

 ■of feven or eight miles in circuit, and is guarded by a 

 deep ditch filled with fea-water, together with a wall, 

 to prevent people from clandestinely entering it. The 

 entrance to this fquare is by a gate, adjoining to which 

 are various buildings for the workmen. 



This wall inclofes all the refervoirs, each of which is 

 furrounded by its particular dam, confequently holds 

 its water without letting any run off. Clofe to the 

 dams are again every where particular canals, by 

 means whereof the people can row about in little 

 canoes on each of the refervoirs, for fetching off the 

 fait. Farther, between every two refervoirs is a place 

 whereon a number of water-wheels, half funk in pits, 

 are conftrudled, and which are worked by horfes. 

 The ufe of thefe is to draw off the water from one re- 

 fervoir into another. 



From the canals the refervoirs are replenifhed with 

 fea-water ; where it ftands/to evaporate. But, for the 

 fake of gaining fo much Jihe more fait at once from a 

 refervoir, the brine, when the water is evaporated to a 

 certain degree, is increafed by the admiffion of a new 

 fupply of water, till it is thought ftrong enough ; when 

 it is left for complete evaporation. When this is over, 

 the fait left behind is colledted and laid in heaps in dry 

 places ; and then the refervoir is filled anew with 

 water. When the water is rnoftly evaporated, and the 

 fait already there, grea^care> muff be taken that no 

 rain falls upon it ; as that would diffolve it again. 

 This is prevented by covering the fait on fuch occa- 



VOX.. I. B B fioiS 



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