Index 283 



Winter kill, 49 



aeration of water above ice, 51 



aeration of water nndcr ice, 51 



changes of oxygen tension, 50 



circulation of bottom water, 52 



circulation of water having BOD, 52 



lamp black, 52 



partial kill, results of, 53 



pumping well water into pond, 51 



snow removal, 52 



transmission of light through ice, 50 



Witt, Arthur, Jr., 244 



Wittingau ( Czechoslovakia ) 

 carp culture at, in 1358, 2 



Wolf- type weir, 140 

 Wood, Roy, 232 

 Wredc, W. L., 221 



Yashouv, A., 120 



Year classes, intermittent, 186 



Yield, 



annual replacement of, 186 



as related to growing season, 185 



as related to standing crop, 184 



Great Lakes, 1920-1947, 184 



maximum, 184 



relationship to carrying capacity, 185 



