D. WATER AREA INDEX TABLES 
TABLE D-1.--Long-term trend in May and July pond indexes by strata, 
southern Alberta, May and July, 1954-63 
[Index numbers in thousands] 


Stratum 
ee em oe ee ee ee ee 
me seg ee ee ee 
Dee ee 
ew ee ae ee a se ne ee ee 
Cn ee er) 
ee ee Pee ee 
sees ee eee se ee ee ee eee 
ese eee ee ee ee 
Oe 
et eet ee 





Average, 1962-63--~------------ 
Percent change, 1963 from-- 
Average, 1962-63~------------+-- 
Percent change, 1963 from-- 
tl 
“meen ee Ee ee eee ee 
104 
