APPRECIATIONAN OF WORKERSTWO GREAT IN HYDRAULICS LIBRARY AN APPRECIATION OF WORKERSTWO GREAT IN HYDRAULICS APPRECIATIONAN OF TWO GREAT WORKERS IN HYDRAULICS GIOVANNI BATTISTA VENTURI BORN 1746 CLEMENS HERSCHEL BORN 1842 BY WALTER G. KENT PRIVATELY PRINTED LONDON : BLADES EAST & BLADES ABCHURCH LANE E-C23 1912 ENGINEERING LIBRARY THESE PAGES ARE DEDICATED TO CLEMENS HERSCHEL, ENGINEER. The Author thegratefully acknowledges assistance PROFESSEURkindly of ERNESTO MANCINI, Secretaire de laIngenieur, Presidence des in his searchLincei, Rome, thefor andportrait, biography original ivorks fenturi.of PAGE 2 V An of Appreciation inTwo GreatWorkers Hydraulics GIOVANNI BATTISTA VENTURI AND CLEMENS HERSCHEL indeed it that the ofhappens germ a truth in some fertilegreat propagated OFTEN brain has lain and the fallenharvestfallow, or centuries later to another's Theyears reaping. be soil andsun,germ may complete, needing only air and and interpretation, application expansion above TheTime. truth haveall,possibly great may no immediate and value. Too ,apparent practical often the real worker or discoverer remains unknown. PAGE 3 In the withcase which we are especial dealing, the worker has rendered duehowever, pious homage histo antecedent confrere. Venturi and Herschel form an eminent and The withone,patent creative,duality. patient and demonstrated thethought experimentation, fully but beautiful natural Law he had discovered.