82
Fig. 36. View of the Burgi respiration apparatus used by Professor
Kroneeker and his pupils in the experiments on the effect
of marching in the mountains.
The bellows and the rubber bags for maintaining the ventilating cur¬
rent of air are shovm inside the casing. These bellows are carried by an
attendant. The vessel holding soda-lime for absorbing carbon dioxide is
at the left.