244 



A. I. RINGER AND EMIL J. BAUMANN 



GII 2 OH 



HCOH 



CH 2 OH 



Glucose Radical 



CH 2 OH 

 Fructose Radical 



Sucrose or Cane Sugar 

 (Neither aldehyde nor ketone functional) 



COH 

 HCOH 



CII 2 OH 

 Glucose Radical 



CH 2 

 Glucose Radical 



Maltose 

 (One aldehyde radical free and functional) 



CH 2 OH 



Galactose Radical 



CH 2 



Glucose Radical 



Lactose 

 (One aldehyde radical free and functional) 



