A still further record of pulse-rate for the standing position was obtained just prior to the walking experiments, when the subject was standing outside the chamber or on the treadmill prior to the actual walking test. Although these pulse-rates, which were recorded by the string galvanometer method, have a greater significance in indicating the transition pulse from standing to walking and the reverse and will be considered later in connection with the pulse-rate obtained during walking, they are also perfectly comparable with the other records for this position obtained in connection with the portable respiration apparatus. These values, which are entered in column d of table 93, are more irregular than the others in that they were not secured for all the men. As a matter of fact, the average values found with the squads by the two methods are strikingly uniform on February 3 and January 6, but on January 28 an average pulse-rate of 61 was secured in the standing experiments with the portable respiration apparatus, as compared with an average of 54 for the standing values obtained before the walking experiment. Somewhat wide variations are noted in individual cases, particularly with Ham on January 6, when the pulse-rate standing with the portable apparatus was 80 and just prior to walking on the treadmill was 95, and with Sne on the same day with pulse-rates of 89 and 69.

While the increment due to standing over lying is practically the same, both with the normal diet and with the reduced diet, a much lower pulse-rate prevails with Squad B on the reduced diet than with the normal diet. In other words, the general depressing effect on the heart action of the reduced diet obtains even with the moderate strain of the standing position prior to walking.

In footnotes with table 93 values are recorded which were obtained with McM on the normal diet day (January 6) and for Lon on the day with reduced diet (January 28). It is perhaps of significance that the increment due to standing over lying is with these two men the average of practically all the others. The standing values with McM were obtained under both conditions and agree fairly well, the values being 80 and 84, respectively. They represent, however, distinctly fragmentary evidence and are not included in the general averages.