164 



INFLUENCE OF FOOD PRESERVATIVES ON HEALTH. 



TABLE XXIII. Reaction of urine in Series II Continued. 

 [All members receiving boric acid.] 



a Preservative not given throughout this period on account of sickness. Sample more strongly acid. 

 b Preservative not given throughout this period on account of sickness. Amphoteric occurs more 

 frequently during this period. 

 c Average for No. 7 only. 

 d Average for Nos. 8, 10, 11, and 12. 

 e Average for Nos. 8, 9, 11, and 12. 



TABLE XXIV. Reaction of urine in Series III. 

 [All members receiving boric acid.] 



Number of samples 



Per cent of samples 



a Sample on 21st lost. 



& Sample on 16th lost. 



