DIETARIES AND RATIONS. 25 



Examples of Daily Rations. Now suppose that we have to 

 arrange a dietary of which soy-beans and rice are the substantive 

 constituents. Keeping the quantity of the more costly and less 

 digestible pulse as low as possible and neglecting for the moment 

 the question of fat or oil, we shall find from the 4th and 5th 

 columns of table 2 and from the 8th column of table i, that 4^ 

 ounces of soy-beans and 8 ounces of rice will supply the necessary 

 amounts of albuminoids and starch : 



Albuminoids. Starch. 



Soy-beans, 4^ oz. furnish ... 1*589 ... 3-123 

 Rice, 8 oz. furnish '584 ... 6-376 



2-173 9'499 

 Amounts required 2-128 ... 9-250 



The only remaining question relates to the fat or oil of this 

 ration. It so happens that soy-beans are rich in oil, the above 

 quantity, of 4^ ounces, containing '851 of an ounce of oil. Now 

 the theoretical quantity demanded by this ration is 752 of an ounce 

 so that in this case no additional oil or fat is wanted. We will 

 take another example, employing a ration in which rice is asso- 

 ciated with a kind of pulse in which there is little more than a 

 trace of oil, and where the albuminoids are present in no more than 

 the ordinary proportion ; such a pulse is the lablab-bean. Adopt- 

 ing the same plan of extracting figures from tables i and 2 as 

 before, we find that 



Albuminoids. Starch. 



Lablab-beans, 8 oz. furnish ... 1792 ... 47 12 

 Rice, 6y 2 oz. furnish ... ... "438 ... 4*782 



2-230 ... 9-494 



Amounts required ... ... 2-128 ... 9-25 



But there is no appreciable amount of oil in this ration ; it must 

 be supplied either by an oily seed, or by a separated oil or fat. 

 Assuming the latter plan to be adopted, we add ^ ounce oil, re- 

 ducing the rice by 2^ ounces and increasing the lablab-beans by 

 y* ounce ; the latter step is rendered necessary by the obligation 



