PHYSIOLOGICAL ACTION OF VENOM OF BLACK SNAKE, 239 
* Denotes that the diminution in volume of the organ is greater 
than the piston-recorder could indicate. During this time its 
lever described a straight line on the drum. As the pressure 
again rose the piston recommenced to describe the characteristic 
volume curve, exhibiting the cardiac and respiratory undulations, 
Experiment 32—Dog, weight 3°6 kilos.; 4 grain morphia 
injected hypodermically; ether; vagi cut; carotid connected with 
a mercury manometer; poison introduced through a cannula in 
external jugular vein; spleen placed in oncometer. Volume of 
spleen when dead = 30 cc. 
Time, Blood | Volume 
pressure ° Remaris 
hrs, mins. secs.| in mm. | spleen. 
Normal 133 | normal | 0001 gramme per kilo. injected into 
jugular vein. 
0 O 30 112 |-0°8 ce 
ee Se 1 82 |-18 ,, 
Ws SO 68 |—2°1 ,, 
ih :.0 s..i4st... 
010 0 79 1-16 ,, 
0 20 0 105 |-0°9 ,, 
0) 198 |-94 , 
0 45 O 101 |-08 ,, 
1 0 0 5 -08 ” 
eeODHED 63 |-16 ,, 
ee 41 |-1-9 ,, 
210 0 $1 |-20 ‘,, 
21 Oo 28 |-20 ,, 
a2 17.0}. 23 |-2°0 ,, | dead. 
Experiment 33—Dog, weight 4°3 kilos., 1 grain morphia hypo- 
dermically ; ether; vagi cut; carotid connected with a mercury 
manometer ; poison introduced through a cannula in the external 
Jugular vein ; spleen placed in oncometer. Volume of the spleen 
when dead = 36-5 ce. 
Time, Blood | Yolume_ 
0 
f 
hrs, mins. secs. 38 mm. spleen. 
Remarks, 
| ic ae 
Normal 120 | normal | ‘000075 gramme per kilo. injected into 
jugular vein. 
0 oO 
eae 
~2U yy 
—31 »”» 
