Page 143. 
80 ON POINTS CONNECTED WITH THE 
The following table contains some of the more recent results and 
one or two more careful measurements of old traces :— 
Ratio borne by sphygmosystole to whole beat, as 
Pulse-rate. F Calculated from 
‘ound : — 
by measurement. equation xy’ =47 x 
(approximately). 
38 4175 4°18 
43 °5 8 °825 3°8 
44°5 3°7875 3°75 
56 3°29 - 3°22 
58 3°195 8-185 
59 3 °185 3°0 
63 2°911 2°96 
63°5 2 °938 2-95 
64 2 °904 2°93 
65 2°83, 2°821 2°9 
67 2°825, 2°788 2°84 
66°5 2 °889 2°795 
69 2°7 2°78 
"3 2°625 2-685 
105 2°132 2°13 
140 1-785 1°75 
Prop. Ill. The length of the interval between the primary and the 
dicrotic rises follows the same law in the carotid and posterior tibial 
that it does in the radial artery. 
That such is the case as far as the femoral and posterior tibial 
arteries are concerned is shown by Dr. Galabin in a paper “On the 
Secondary Waves in the Pulse,” recently published (Journal of Anat. 
and Phys., 2nd series, No. xiii). It is not necessary, in proving this 
law, to undertake any large series of measurements; for if all those 
which are taken agree exactly with the calculated result obtained 
from the radial equation, the probability that it is correct is almost 
infinitely great. In a boy, etat. 16, whose radial pulse was previously 
proved to follow the above law exactly, the following are the results 
obtained by measuring the carotid tracings :— 
Ratio borne by sphygmosystole to whole beat, as 
Pulse-rate. 
Found Calculated 
by measurement. from radial equation. 
67 2-899 2°84 
68 2 ‘827, 2°6 2°8 
72 2°7144, 2°7 
77 2 +583 2°59 
77 2 °594 2°59 
