788 INFLUENCE OF FOOD PEESEEVATIVES ON HEALTH. 



The charts for Nos. 7 to 12, who received sulphurous acid in an 

 uncombined form, show in the case of No. 7 a marked increase during 

 the preservative period. No data are given for the final period for 

 reasons already stated. In the case of No. 8 there is a very slight 

 increase in weight during the preservative period and a continued 

 increase during the after period. No. 9 shows a marked increase in 

 weight during the preservative period and a slight decrease therefrom 

 during the after period. In the case of No. 10 there is a very slight 

 increase in weight during the preservative period, and this is increased 

 to a perceptible amount during the after period. No. 11 made a 

 slight increase in weight during the preservative period and a slight 

 increase over this during the after period. In the case of No. 12 there 

 is a slight increase in weight during the preservative period, but the 

 weight remains the same in the after period as in the preceding 

 period. 



There is next brought together in one graphic expression the 

 weights for Nos. 8, 9, 10, 11, and 12, who received uncombined 

 sulphurous acid. No. 7 is omitted from the average because the 

 weights were not ascertained during the fourth preservative sub- 

 period nor the after period. These data show a very slight increase 

 in weight during the preservative period and a similar slight increase 

 during the after period. Combining all the data for weight and 

 expressing the same in graphic form, omitting the weights of No. 7, 

 the general average shows that there is no change in weight in the 

 preservative period over the fore period and a slight loss in weight 

 during the after period. 



These data indicate that the administration of sulphurous acid 

 combined as sulphites, in the quantity administered, tends to produce 

 a slight decrease in the weight of the body, a continued decrease 

 taking place in the after period, but its administration in the form of 

 uncombined sulphurous acid, in a smaller quantity, is accompanied 

 by a very slight increase in the weight of the body. The final average 

 effect upon weight for the 11 men shows no change in the pre- 

 servative period and a slight decrease in the after period. 



RATIO OF FOOD WEIGHT TO BODY WEIGHT. 



The ratio of food consumed to the body weight for each member of 

 the table is given in Table III. In the case of No. 1 the average body 

 weight during the fore period is 68.34 kilograms, during the preserv- 

 ative period 68.58, and during the after period 68.62 kilograms. 

 These data show a very slight change in the weight of the body during 

 the period of observation, a slight increase, amounting to 0.24 kilo- 

 gram, occurring during the preservative period. 



The average weight of dry food consumed is slightly less in the 

 preservative period than in the fore and after periods. The weight of 



