1026 



INFLUENCE OF FOOD PRESEKVATIVES ON HEALTH. 



TABLE III. Reaction of the urine and presence of albumin, Series XI Continued. 

 Snm.rn.ary (IN~os. 3, 4, and. 1O). 



ANALYTICAL RESULTS. 



INDIVIDUAL DATA. 



In this supplementary investigation an attempt was made to supply 

 a constant quantity of nitrogen in the food. This was done by using 

 only one kind of meat, namely, beefsteak, and varying the other foods 

 in such a way as not to disturb the quantity of nitrogen ingested, 

 which calculation was based upon the average analyses of the foods of 

 the preceding year. It is evident that there are certain variations in 

 the composition of beef and other foods which render it improbable 

 that the quantity of nitrogen ingested is exactly that -given, but it is 

 fair to assume that the quantity of nitrogen consumed daily varies 

 but slightly from the constant figure used to express it. 



Table XXIV shows the total volume of urine, the specific gravity, 

 the weight of total solids, the total nitrogen ingested, the total nitro- 

 gen excreted in the urine, and the distribution of that nitrogen among 

 the various nitrogenous constituents. The total quantities of these 

 constituents and the percentage of these bodies in terms of total 

 nitrogen eliminated are also given. 



