A Treatise on Rivers and Torrents: With the Method of Regulating Their Course and Channels

acceleration afterwards already ancient appears arises banks become begins body of water Bolognese Book bottom breadth called Canal carry caused Chapter common consequently considerable continued course deposites diminish direction distance drains effect elevated embankments enter entrance equal established excavation experiments extend fall feet floods flow force four given gravels greater greatest Guglielmini half happen height higher horizontal Idice inches increased Italy junction Lake Lavino length less lower manner means miles motion mountains mouth nature navigation nearly necessary observed obstruction occasion opening particles pass present Primaro principles proportion proposed quantity of water raised reach reason receives reduced remain Reno rise river Samoggia sands Savena side slope sluice space square stones stream substances sufficient surface taken torrents tributary trunk turn upper valley velocity vessel wheel whole