TABLE I. Dates of periods and subperiods, Series IX. 



a In tabulating the results the data for December 7 are omitted owing to the fact that the preservative 

 was administered only on the morning of that day, and it was then deemed advisable, on account of the 

 condition of the subjects, to begin the after period. 



Table II shows the administration of the formaldehyde during the 

 preservative period. The quantity given daily during the first pre- 

 servative subperiod is 100 milligrams, during the second preservative 

 subperiod 200 milligrams, and during the third preservative sub- 

 period 200 milligrams, making a total of 2.5 grams administered 

 during the entire preservative period. 



TABLE II. Schedule of administration of preservative, Series IX. 



a No. 9. left the city before the entire observation was completed and therefore his data are omitted. 



b On Dec. 7 those subjects who were still receiving the preservative were given 0.1 gram, but it 

 was deemed inadvisable to continue the preservative period for another five days, and the after period 

 was accordingly begun on Dec. 8, the data for Dec. 7 being disregarded in the tabulations. 



[Cir. 42] 



