DE. A. GAMGEE ON THE ACTION OE NITEITES ON BLOOD. 
617 
Volume of blood exhausted 41*2 cub. centims. 
Total gases obtained =145*8 vols. 
After absorption of C0 2 = 11*65 „ 
After absorption of O = 9*58 „ 
Total gases obtained =145 *8 vols. 
Carbonic acid .... 134*15 
Oxygen ...... 2*07 
Nitrogen 9*58 
Composition of gas in 100 parts. 
Oxygen ...... 1*41 
Carbonic acid . . . . 92*00 
Nitrogen ...... 6*59 
100 volumes of arterialized blood of the Sheep mixed with 0*195 grm. of pure nitrite 
of potassium yield — 
At CP C. and 0 m '76 pressure. 
At 0° C. and 1 metre pressure. 
Total gases 
39-91 vols. 
30-30 vols. 
Oxygen 
0-56 „ 
0-42 „ 
Carbonic acid 
36-38 „ 
27*64 „ 
Nitrogen 
2*97 „ 
2-25 „ 
IV. In this experiment 100 cub. centims. of recently defibrinated and thoroughly 
arterialized blood of the Sheep were treated with four minims of nitrite of amyl diluted 
with sixteen minims of rectified spirit. After having been mixed with the nitrite for 
one hour and forty-five minutes, a portion of the blood was admitted into the exhausted 
receiver. The exhaustion was carried on for one hour. After twenty-five minutes the 
vacuum appeared perfect, and scarcely any more bells of gas could be removed. 
Weight of blood used .... 40*5 grammes. 
Volume of blood used .... 38*27 cub. centims. 
Total gases obtained 178*12 vols. 
After absorption of C0 2 . . . 21*64 „ 
After absorption of O .... 8*64 „ 
Composition of gas in 100 parts. 
Oxygen 7*29 
Carbonic acid .... 87*85 
Nitrogen 4*86 
100*00 
Total gases obtained =178*1 2 vols. =19*84 cub. centims. at 0° C. and 0* m 76. 
Oxygen = 13*0 „ = 1*44 „ „ 
Carbonic acid =156*48 „ =17*43 „ „ 
Nitrogen = 8*64 „ = 0*96 „ ,, 
4 p 2 
