236 C. J. MARTIN. 
Experiment 29—Rabbit, weight 1-2 kilos. 
Time. Blood pressure] 
; in mm. of Remarks. 
hrs, mins. secs, mercury. : 
Normal 102 ‘0035 gramme per kilo. of body weightim 
jected under skin of abdomen. 
Uo 75.00 100 
9 30 0 97 
0 45 0 97 
poe, | Fae 93 
bee 90 
1 30 0 87 
1 45 0 89 
A | OBR A, 84 
RS Sie 78 
2 30 O 75 
2 45 O 75 
ps eae SL 69 
& 15° 0 52 
38 25 0 bl 
3 30 0 26 
3 35 O 22 
3 40 0 17 
3 44 0 15 dead. 
Simultaneous observations on the arterial blood pressure and the : ? 
volume of the kidney or spleen following the intravenous — 
injection of the venom. 
These experiments were performed on dogs. The animals wet® 
given a hypodermic injection of morphia half an hour previously 
and inhaled ether during the operative procedure. The carols 
artery and jugular vein were dissected out. The former e 
connected with a mercury manometer, and a cannula tied in 7 
vein by means of which the venom containing solution was in’ 
duced. The kidney was reached through the loin, and placed _ 
a Roy’s oncometer and surrounded by hot cloths. I . 
using oil as Roy originally did, hot water was used and = 
membranes enclosing the organ were previously soaked py 
The oncometer was connected to the piston-recorder by an ini 
rubber tube with stout walls. Unfortunately the range of ma 
ment of the piston-recorder I have worked with is insufficient ® 
register the great variations produced in the volume of the kidney 
by the injection of snake venom. The spleen was reached by ® 
