GASES OF ARTERIAL BLOOD. 
761 
different observers upon various animals have been collected in tabular 
form by Zuntz, 1 and arc here reproduced with some additions: — 
Quantity 
Percentage 
of Volume of Blood, 
Measured at 0° and 
760 Mm. 
er and Number of 
Animal. 
Experiments. 
Oxygen. 
Nitrogen. 
Carbon 
Dioxide. 
Dog . 
Mean 
...,.,■ 
i-a 
34-3 
Pfliiger,- twelve experiments, but 
only three determinations of 
C< >... Rapid method employed. 
f 
Mean 
18-3 
1-8 
37-7 
Forty-four analyses of carotid 
Dog . 
Max. 
■1 1-7 
53-4 
blood by Setschenow, Schoefl'er, 
' 1 
Min. 
11-4 
1-2 
23-3 
Sczelkow, Xawrocki, Hirsoh- 
mann. Sachs and Pfliiger. Col- 
li-' -ted by Pflr.ger. 3 
Dog . 
Mean 
18-4 
2-0 
38-8 
Blood of femoral artery. Twenty- 
five analyses by Pfliiger, 3 two 
by Hirschmann. 
j 
Mean 
19-4 
40-4 
One hundred experiments by Paul 
Dog . 
Max. 
26-4 
. 
50-8 
Bert. 4 
Min. 
14-4 
33-0 
Dog . 
17-58 
38-57 
Geppert and Zuntz. - 1 
i 
15-4 
1-5 
40-1 
Grehant. 6 
Dog . 
1 
21-2 
1-5 
45-9 
1. 
:."■_■ 
1-8 
40 
22-7 
To 
40-4 
1 
17-3 
33-4 
Ewa Id. 7 
Do» 
15-4 
32-4 
^ u o 
1 
15-8 
35-1 
15-7 
26-35 
Dog . 
Mean 
18-25 
37-64 
Hill and Nabarro, 8 average of 
fifty-two samples of arterial 
blood. 
Cat . 
Mean 
13-1 
1-3 
28-8 
P. Hering, 9 six experiments. The 
value of oxygen is too low, 
since phosphoric acid was 
added to the blood beforehand. 
- sep . 
Mean 
10-7 
1-8 
45-1 
Sczelkow. 10 Two analyses. 
Sheep . 
Mean 
12-8 
Three analyses by Preyer 11 on 
venous blood shaken with air. 
Rabbit 
M«_ a 11 
13-2 
2-1 
34-0 
Four analyses by Walter. 12 
Rabbit 
10-9 
37-34 
Geppert and Zuntz. 13 
Man 
21-6 
1-5 
40-3 
One analysis by Setsehenow. 
1 Article in Hermann's "Handbuch," Bd. iv. Th. 2, S. 35. 
2 CentralM. f. d. rued. Wissmsch,., Berlin, 1S67, S. 722. 
3 Arch. f. d. ges. Physiol., Bonn, 1868, Bd. i. S. 274. 
4 "La pression barometrique," Paris, 1878, p. 1030. 
5 Arch. f. d. rjes. Physiol., Bonn, Bd. xlii. S. 189. 
6 Compt. rend. Soc. de biol., Paris, 1892, p. 163. 
7 Arch. f. d. ges. Physiol., Bonn, 1873, Bd. vii. S. 57-". 
8 Jour a. Physiol., Cambridge and London, 1895, vol. xviii. pp. 223. 224. 227. 
a " Untersuch. u. d. Zusainmensetzung der Blutgase wiihrend der Apnoe," Diss., 
Dorpat, 1S67, Meissner's Jahresb., l s 07, S. 305. 
10 Arch. f. Anat.. Physio!, u. wissensch. Med., 1864, S. 516. 
11 Wien. med. Jahrb., 1865, S. 145. 
12 Arch. f. exper. Path. v,. Pharmakol., Leipzig, Bd. vii. S. 148. 
13 Arch./, d. ges. Physiol, Bonn, Bd. xlii. S. 189. 
