6 
DR. VV. MARCET ON A CHEMICAL INQUIRY INTO 
tudes less air breathed, reduced to 0° and 760 mm., than at the sea level, is required to 
produce 1 grm. of carbonic acid in the body. The experiments on the Peak of Tenerife, 
by doing away entirely with the influence of cold, placed this fact beyond doubt. 
As it is important towards a clear understanding of this paper that the results 
obtained formerly should be present to the reader, I beg to subjoin them in a tabular 
form. 
Experiments on the Influence of Altitude upon the Chemical Phenomena of 
Pespiration (on Myself). 
Stations. 
Altitude. 
Weight of COo 
expired. 
Litres of air expired 
reduced to 0 ° and 760 mm. 
feet. 
grm. 
Near Geneva. 
1,230 
1 
13-6 
St. Bernard. 
8,115 
I 
Alean at and above 
Riffel. 
8,428 
1 
8115 feet np to 
Col St. Tlieodule .... 
10,899 
] 
13,685 feet. 
Summit of Breithorn . 
13,685 
1 
11-05 
On the Peak of Tenerife (on Myself). 
Stations. 
Altitude. 
Weight of COj 
e.xpired. 
Litres of air expired 
reduced to 0“ and 760 mm. 
Seaside. 
feet. 
grm. 
1 
12-24 
Gnajara. 
7,090 
1 
11-9 
Alta-Vista.. 
10.700 
1 
10-7 
Foot of terminal cone . 
11,740 
T 
JL 
10-6 
Col du Geant (mi Myself). 
Stations. 
Altitude. 
Weigiit of COo 
expired. 
Litres of air expired 
reduced to 0° and 760 mm. 
Near Geneva. 
feet. 
l,-230 
grm. 
^1 
15-5 
Courmayenr. 
3,945 
1 
jMean before and 
after ascent. 
14-35 
Summit of Col du Geant . . 
11,030 
1 
12-6 
Col du Geant (on a Companion). 
Stations. 
Altitude. 
Weiglit of CO 3 
expired. 
Litres of air expired 
reduced to 0 ^ and 760 mm. 
feet. 
grm. 
Geneva . 
1,230 
1 
13-7 
Alean befoi-e and 
after ascent. 
Conrmayenr. 
3,945 
1 
14-8 
Summit of Col du Geant . . 
11,030 
1 
12-6 
