1272
C.
S. HUDSON AND J. M. JOHNSON.
[CONTRIBUTION FROM THE CARBOHYDRATE LABORATORY,BUREAUOF CHRYISTRY, UNITED STATES DEPARTMENT OF AGRICULTURE.]
THE ROTATORY POWERS OF SOME NEW DERIVATIVES OF GENTIOBIOSE.
BY
c. SZ.HUDSONAND I.
M. JOHNSON. Received April 2, 1917.
Three disaccharides have the composition glucose C glucose