LAGUNES AND LIDI OF VENICE. 



177 



rivers ; * the direction of the breakwaters indicates precisely the line 

 of equilibrium between the marine and fluvial waters. Within the 



r 



i 



Fig. 78. — Lagunes and Lidi of Venice. 



outer coast-line it has been possible, without any considerable artificial 



means, to put the whole series of interior lagunes in communication 



* See in Vol. I. the section entitled Rivers. 



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