Where samp.ies were alalyzed at two different times
results from both analyses are given.
Total calcium was detesmined by KMnOg titration of
caicium oxalate in Dec. 59 and by EDTA titration using murexide
indicator in Jan.
39.
Calcium values ure being recnecked
where
the discrepency Detween the lwo analyses is greater than i0%,