PULSE-RATE. 401 



the first day, when undoubtedly the novelty of the test played some 

 role. The subsequent values prior to diet restriction were essentially 

 constant, ranging only from 64 to 60. On January 9, the first observa- 

 tion after the diet was reduced, no great change in pulse-rate was 

 found, save with Lon and Sne, whose pulse-rate fell 9 beats, a change 

 however, no greater than that observed on previous days with a few 

 subjects. On January 16, however, there was a pronounced fall with 

 practically all of the men save Ham, whose pulse-rate of 61 on January 

 9 and 16 is actually higher than the rate for December 12. The 

 extraordinarily low rates of Sch of 38, representing the absolute 

 minimum values found with all the men, except for the isolated figure 

 for Van of 37 on January 23, would have been particularly interesting 

 for a comparison with prediet values. Unfortunately no such 

 values were obtained for this subject, as Sch did not enter the squad 

 until later in the year. Comparing the average values for the period 

 of restricted diet, we find that although the first record (that for 

 January 9) is the same as the last normal record, i. e., 60 beats, the 

 pulse-rate dropped on January 16 and 23 to 52 and 48, respectively. 

 With the resumption of normal diet the first record (that for January 30) 

 shows a decided increase in pulse-rate in every instance, the most 

 striking being that with Sne of 24 beats. The average for the whole 

 squad shows an increase from 48 to 63, or 15 beats per minute. On the 

 next experimental day, February 6, there was a still further increase 

 with all but two men. Ham, whose pulse-rate decreased 6 beats, and 

 Tho, whose rate did not change. A large increase was noted with How 

 from 65 to 92. The average for the squad increased from 63 to 70. On 

 the next two experimental days the average pulse-rate remained essen- 

 tially the same, but on February 26 and March 6 there was a tendency 

 towards a fall, the average values being 63 and 61, respectively. These 

 later pulse-rates represent values which are probably characteristic of 

 the normal dietetic habits of these subjects. 



Thus with Squad B we have a complete dupUcation of the picture 

 shown with Squad A, except that in this series of records we have also 

 normal values prior to the diet reduction, in addition to the normal 

 values with the resumption of full diet. While the minimum average 

 value with Squad B was 48 as compared with the minimum average 

 value of 44 with Squad A, it is clear that the influence of restricted diet 

 upon the pulse-rate as indicated by both squads was very pronounced. 



PULSE-RATE WITH SITTING POSITION. 

 PULSE-RATE WITH SITTING POSITION, PSYCHOLOGICAL TESTS. 



All of the pulse data given in the previous section, save those taken 

 by Professor Johnson and certain of the electrocardiograms, were 

 obtained with the subject in the lying position in the post-absorptive 

 condition and without previous activity. Beginning with December 8, 



