616 
DK. A. G-AMGEB ON THE ACTION OE NITKITES ON BLOOD. 
The blood was allowed to flow into the receiver at one o’clock, and the exhaustion 
was carried on exactly for one hour. 
Weight of blood used 
31 grammes. 
Volume of blood used 
29-6 cub. centims. 
Volumes of gas obtained .... 
167-8 vols. 
After absorption of C0 2 
70-19 „ 
After absorption of O 
6-62 „ 
100 parts of gas contain- 
Oxygen 
37-88 
Carbonic acid ...... 
58T7 
Nitrogen 
3-95 
100-00 
167-8 vols. of total gases =18*69 cub. centims. at 0° C. and 0 ,m 76. 
6-62 
,, Nitrogen = 0-737 
55 55 
97-61 
„ Carbonic acid =10-873 
55 55 
63-57 
„ Oxygen = 7-073 
55 55 
Gases evolved by 100 volumes of defibrinated blood of the Sheep arterialized by 
agitation with atmospheric air. 
At 0° C. and 0 m# 760 pressure. 
At 0° C. and 1 metre pressure. 
Total gases. 
61-12 vols. 
46-97 vols. 
Oxygen 
23-88 „ 
18-14 „ 
Carbonic acid 
36-72 „ 
27-90 ., 
Nitrogen 
2-48 
1-88 „ 
III. In this experiment the same blood was used as in II., with the exception that 
0T95 of pure nitrite of potassium were added to 100 parts of blood. 
Weight of blood taken . . . 43-2 grammes. 
Volume of blood taken . . . 41 ’2 cub. centims. 
The bath into which the blood-receiver was plunged had a temperature of 98° Fahr. 
From the very moment that the blood entered the receiver the mercury was allowed to 
flow freely through the aspirator. The gas was collected in a laboratory-tube of Franr- 
land’s apparatus. 
The evolution of gas appeared to be most brisk at 3.13, i. e. eight minutes after the 
blood had been admitted into the receiver. The temperature of the latter was gradually 
brought up to 110° Fahr. At 4.5 (after fifty-two minutes) the laboratory-tube was 
removed to Frankland’s apparatus and the gas analyzed. Still another tube having 
been substituted, the pumping was carried on until 4.50, the temperature of the water 
being taken up to 130° Fahr. Only a tiny bubble (which it would have been vain to 
attempt to measure) was collected during the forty-five minutes which followed the first 
hour’s pumping. 
