106 



haemorrhage during a rise of aortic pressure is necessarily 

 increased. 



Observations on Blood Pressnre, etc. 

 The subjects examined were persons mostly between the 

 ages of 30 and 65, all, so far as was known, without 

 organic disease of the circulatory system. The observations 

 were made quickly after the awakening of the subject, the 

 apparatus having been kept in readiness for immediate 

 use. Systolic blood pressure was measured by the auditory 



During the day the pulse rate was generally 76 to 80. 



and tactile methods, diastolic pressure by the auditory 

 method. On occasions when no measurements could be 

 made convincing evidence of the occurrence of extensive 

 changes was obtained by ordinary digital examination of 

 arteries, palpation of the cardiac impulse, etc. The follow- 

 ing are some of the examples of the sort of observations 

 made and the nature of the results obtained. 



