84 INFLUENCE OF FOOD PRESERVATIVES ON HEALTH. 



excitement is not very pronounced. On the 9th only a fourth of a gram 

 of boric acid is given, as it seems probable from the symptoms that 

 the headaches are due, to some extent at least, to the administration 

 of the preservative, though the fever does not seem to depend upon 

 that agent. From April 10 on the condition of No. 13 is such as to 

 render advisable the discontinuance of the giving of the preservative. 

 By April 14 the body weight has fallen to 49.8 kilograms, and on the 

 17th the subject is withdrawn from any further observation. 



Perhaps it would be difficult to find a set of data more unsatisfac- 

 tory than those obtained with this man. The threatening condition of 

 his lungs, the low vitality of his system, and the frequent recurrence 

 of the attacks of the grippe, ommingled with symptoms of malaria, 

 make it extremely difficult to trace definitely any disturbing effect upon 

 the system which the preservative may have produced. It is only 

 during the period in April above referred to, when for several days 

 there were persistent conditions of headache, that the effect of the 

 preservative is at all discrete. In this case it is justifiable to assume 

 from the conditions existing that some slight influence may have been 

 produced by the preservative in establishing the condition of cephal- 

 algia noticed. There are no evidences, however, that these small 

 quantities of the preservative, given in this interrupted manner, had 

 any tendency to produce nausea or other marked symptoms which are 

 manifest in the cases of other subjects when large quantities of the 

 preservative agent are emplo} T ed. In other words, it is evident in this 

 case, even from the fragmentary and unsatisfactory evidence at hand, 

 that no absolutely certain prejudicial effect is produced by the admin- 

 istration of the preservative. It is also equally evident that in a system 

 so disturbed and so prone to other influences as that of No. 13 experi- 

 mental evidences of a satisfactory nature or leading to definite con- 

 clusions can not be obtained. 



No. 9, later No. 14. 



The data in this case are very similar in character to those obtained 

 in the case of No. 5 (No. 13, R. V. F.). 



No. 9 (E. B. D.) began as a regular member of the class of the second 

 series, and the data relating to this subject during this period are suf- 

 ficiently described in the section relating to that series. The febrile 

 excitement in the case of No. 9 developed first on January 25, with a 

 slight increase in temperature and in the rate of pulsations. The body 

 weight on this date is 51.49 kilograms. A very bad cold is developed 

 on the 26th of January, with the temperature rising to 100 F., and 

 preceded during the night with a severe headache and neuralgia, the 

 headache^continuing at intervals during the day. These unfavorable 

 conditions continue during the 27th in a very marked degree, and this 

 condition, which seems to be the beginning of a serious attack of 



