CONTENTS 



I. Introduction. 



II. Experimental Procedure. 



1. Selection and Care of Animals. 



2. Basal Ration and its Preparation. 



3. Source of Vitamin B, Treatment and Manner in 



Which it Was Fed. 



III. The Adequacy of the Basal Diet. 



IV. Determination of the most Advantageous Dose for 



Measuring Heat Destruction of Vitamin B in Skim- 

 med Milk Powder. 



1. Feeding the Milk Separately from the Rest of the 



Diet. 



2. Feeding the Dried Milk Mixed with the Rest of the 



Diet. 



V. The Effect of Heat upon Vitamin B in Milk in the Dry 

 and Fluid State. 



1. Experiments with Reconstructed Milk Fed Separate- 

 ly from the Rest of the Diet. 



2. Experiments with Milk Mixed with the Rest of the 

 Diet. 



VI. Summary. 



