140 



THE CARBOHYDRATES. 



[CH. V. 



copper valu es for lactose . They are represented graphically 

 in fig. 1 8. 



It must be noted that the results are given as anhydrous 

 lactose, and not as the crystalline hydrate. 



mg. Cu. 

 Fig. 18. -Curve showing amount of copper reduced by lactose anhydride. 



In the case of lactose as much as 250 mg. may be 

 present in the 20 cc. taken. 



The copper values above 25 mg. Cu. can be converted 

 to anhydrous lactose by the use of the following formula : 



mg. anhydrous lactose = 1-25 + mg. Cu. x 0-778. 



