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leave less residue for intestinal putrefaction. While this is true with regard to
a diet containing 12 ozs. of wheat ata, will it be the case when the wheat ata is
reduced to 10 ozs. per man daily ?

       The question, therefore, is:—accepting our result as correct, that the proper
quantities for a diet of the Behar type are 12 ozs. of Burma or Country rice, 10 ozs.
of wheat ata or 12 ozs. of makkai ata, what amount of dal should be given with
these constituents in order that the absorption should be a maximum ? In order
to answer this question the following investigations were carried out.

       To keep the conditions as nearly constant as possible arhar dal was experi-
mented with in Bhagulpur jail, and mung dal in Buxar jail. Mung dal is a repre-
sentative of the more highly nitrogenous forms, while arhar contains the medium
percentage of protein. Both forms are favourite dals with the Behari. They may
be, therefore, taken as fairly representative of the general run of dals in use.

       (i) Investigations to obtain the varying degrees of nitrogenous metabolism on
diets of country rice, wheat ata, arhar dal and vegetables—when all constituents
of the diets are constant, except the arhar dal.

Bhagalpur Jail.

TABLE XX.

SCHEME OF DIETS.

Diet I.

Behari prisoners observed for five consecutive days.