PHYSIOLOGICAL ACTION OF VENOM OF BLACK SNAKE. 161 
observations. In those few cases where there was any marked 
disagreement, two more counts were made, and the average of 
the whole four observations was adopted. 
Protocols of Series 1. 
Ex. I.—Slut, weight 6-8 kilos. ; grain 1 of morphia acetate sub- 
cutaneously injected. 
4:10 p.m., samples of blood drawn. 
4:20 000025 gramme of venom per kilo. of body-weight 
injected into jugular vein. 
4°35 ,, same quantity injected. 
455 ,, same quantity injected. 
457 ,, sample of blood drawn. 
735 ,, sample of blood drawn. 
100 ,, sample of blood drawn. 
” 
Number of Corpuscles. 
Red in10 | White in 100 
squares. 
Time. squares. 
Before injection of venom ... 540 24°5 
87 minutes after first injection ve venom.. 466 35 
hours 15 minutes, do. do. do. ... 296 2 
A ee ee. ee ee 
Ex. II.—Dog, weight 8-2 kilos.; 2 grains morphia acetate. 
3°50 p.m., sample of blood taken. 
40 ‘000025 gramme of venom per kilo. of body-weight 
injected into jugular vein. 
410 ,, sample of blood drawn. 
420 ,, sample of blood drawn. 
50 ,, ‘0001 gramme per kilo. injected. 
” 
60 ,, sample of blood drawn. 
os sample of blood drawn. 
: : Hamber of et 
Time, | Red 2 10 | White in in 100 
Defense. ‘ie ioctice ee ce =e 603 i 105 
10 minutes after injection | 517 | be 
20 minutes after injection | 497 15 
Shoursafter injection .. | 414° | 7S 
5 hours |» hours after injection ae 365 wae 5 a ee) 2 se 
K—July 3, 1895, 
