1972 GC FINGER AND FH REED VoI. 66 ually diminished until after three hours it came to a con-stant rotation of [a] n-83”. A similar sample of commercial inulin oxidized with sodium periodate in the same manner reached the same constant rotation within a similar period of time. The absence of formic acid was shown by the fact that no titratable acidity was produced at the end of the reaction. The amount of periodate consumed in the reactionla ...