BiEAiifA^E ®F wmmB Amm> 1.©'W ILilSIBe 



Plate. 2. 



Pig: 1. 



SECTIONAL ELEVATION. 

 SLUICE FOR DRAIN 



EMPTYING INTO TIDAL RIVER. 



at q^o ; -2 8 -^ :? e 7 9 ^ JP 



LONGITUDINAL SECTION 



■Saalf /brJ'Cg. ,7. 



ELEVATION OF DRANN DOOR. 



Fig: 5 . 



■OJFhel .X'<se0-7O S^O 7p 



Secde-AinFi^.a. 



■m eo:x-eey 



Pig : 6 



E/&r. N. Sj)oxi.,_Ioiidou & l^ew York 



I'ho? Kell &.■ Son, iith. 4-0 Kug 3° Ccr/Bnu GOTdfiii 



