r 
Y&l.I.p. 4- 
Transverse section at' the bank of a Kcsavoir at the foS/. 
PL IT EL 
Pdhr 
Lransi'erse section of the bonk and sluice of an Ennji or fte.teivoii 
( hitsnle 
mi 
Tien' of ‘ the fachf of a reservoir. 
Hamer se~ 
