710 
PROFESSOR HARLEY ON THE INFLUENCE OF 
No. 46. — Air from blood plus woorara, in 100 parts of air. 
Oxygen . . 
Carbonic acid . 
Nitrogen . . 
1 2.gg} Total oxygen 19-83 
80-17 
No. 47. — Air from blood plus antiar, in 100 parts of air. 
Oxygen . . . 
Carbonic acid . 
Nitrogen . . 
1 2 - 98 } 
1 oi rTota-l oxygen 13-99 
86-01 
No. 48. — Air from blood plus aconitine, in 100 parts of air. 
Oxygen . . . 
Carbonic acid . 
Nitrogen . . 
o!!} Total oxygen 12-96 
I’oU J 
87-04 
By placing these results in a tabular form the comparative value of each of the factors 
will be made more apparent. 
Oxygen. 
Carbonic acid. 
Nitrogen. 
Total oxygen. 
In 100 parts of air from pure blood 
13-76 
2-05 
84-19 
15-81 
Blood plus woorara 
16-85 
2-98 
80-17 
19-83 
„ „ antiar 
12-98 
1-01 
86-01 
13-99 
„ „ aconitine 
11-66 
1-30 
87-04 
12-96 
The similarity in the action of antiar and aconitine, and the dissimilarity between their 
action and that of woorara, are well illustrated in the above Table. The woorara dimi- 
nishes oxidation and increases the exhalation of carbonic acid. Antiar and aconitine 
increase oxidation and diminish the exhalation of carbonic acid gas. 
Strychnine. 
In order to ascertain the influence of strychnine, a quantity of fresh calf’s blood was 
shaken with renewed portions of atmospheric air until it had become thoroughly 
saturated with oxygen. It was then enclosed in a receiver with 100 per cent, of ordi- 
nary air, corked up, and kept in a room of moderate temperature during twenty-four 
hours. 
A second portion of the same blood (62 grammes) was similarly treated in every way 
except that it had 0-05 gramme of strychnine added to it. During the twenty-four 
hours the receivers were as usual frequently agitated to favour the mutual action of the 
blood and air. At the end of this period the composition of the gas in the receivers was 
found to be — 
