U. S. B. F.—Doc. 912. 
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‘U stor, Cour. © 
SECTION AA 
LONGITUDINAL 
Fic. 3—Plao of pond outlet and kettle for fishponds. 
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A “PLAN 
SECTION 
(Designed by G, C. Leach.) 
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VALVE KEY 
100267°—22, (Face p. 68.) 
