The average normal pulse pressure (i. e., the difference between systolic and diastolic pressures) of college students of this age and environment is shown in table 77 by the values found on January 5 with Squad B, namely, 37 mm. with a range from 20 to 58 mm. Before considering the pulse pressures with Squad A we may advantageously examine those with Squad B. These show a slight tendency to fall (7 mm. on the average) as the restricted diet progressed and increased in only two cases. With Squad B, the normal pulse pressure was not far from 37 mm. Comparing this value with the pulse pressures for Squad A given in table 76, we find that with the prolonged reduction in diet there is a tendency toward much lower pulse pressures with not a few of the men in this squad. Bro shows a low pulse pressure of 15 mm. in many of the measurements, Can one record of 15 mm., Kon two records of 5 mm., and Gar two records of 15 mm. The lowest record for Gul was 25 mm., Mon, 10 mm. Moy, 5 mm., Pea, 25 mm., Pec, 10 mm., Spe, 15 mm., Tom, 15 mm., and Vea, 25 mm. The group averages in the last column of the table show that the pulse pressures regularly decreased from 34 mm. on October 13 to 18 mm. on December 19, but after the return from the Christmas vacation, the pulse pressure rose for the whole squad to 25 mm. with the two final values somewhat higher, i. e., 30 and 31 mm. It is quite clear that a large proportion of the values shown in table 76 are distinctly lower than normal; hence we may consider that as a result of the low diet there was a definite tendency towards a decrease in the pulse pressure, as well as an absolute decrease in not only the systolic but likewise the diastolic pressure. Pea, a well-trained athlete, retained a remarkably constant pulse pressure throughout the entire series of observations. That the pulse pressures of Squad A are noticeably lower than those of Squad B is clear in spite of the almost identical systolic, diastolic, and pulse pressures of both squads on the first day of the experiment. The relationship between these lower values and the exact metabolic level is worthy of special attention in further work.