﻿INSTITUTE OF PHYSIOLOGY
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Fig. 13.—Room for Experimental Zoology
workers of whom two can ordinarily be accommodated in the guest rooms.
The official annual budget available for laboratory purposes amounts to 6,400 Danish kroner.
The laboratory occupies the basement, first floor, and part of the second floor in the northwest wing of the main building and possesses the ground adjoining on the northwest.
The distribution of the rooms can be seen on the plans. The basement is used mainly for technical purposes, the first floor for research, and the rooms on the second floor for teaching.
Outside the main building we have an “experimental area” (Fig. 2) partly shown in Figure 12, containing the animal house, a glass house, and a number of cement tanks. Behind this is an area of 500 m2 enclosed by close-meshed wire netting and containing an additional cement tank of which one part is shallow while the other has a depth of 2 m. This area is used mainly for frogs which are here kept in practically normal surroundings. The roof seen in the background belongs to a wooden house (Fig. 2) containing a steel chamber for respiration experiments and for studies at low atmospheric pressure.
There is no need to describe the general equipment more or less common to all physiological laboratories, but I shall give some details regarding certain special features, which may be of interest to others.
The large respiration room in the basement towards the northwest contains respiration chambers of the Jaquet type for experiments during absolute rest and during graded muscular work. The air is taken from outside and sucked through the chambers by means of motor-driven wet gas meters. The analysis of the ingoing and outgoing air is carried out in a special apparatus accurate to 0.001 per cent by means of which C02, 02 and combustible gases can be determined. In the adjoining room smaller apparatus for the determination of pulmonary gas exchange, lung diffusion, and circulation rate will be installed.
The steel respiration chamber located in its own building is a cylindrical structure 3.42 m in diameter, 1.82 m in vertical height, with a hemispherical dome. The chamber is connected with pumps which can maintain a very effective ventilation at any desired pressure below" the atmospheric. The chamber is equipped as a living-room with a small separate toilet. A bicycle
Fig. 14.—Balance Room and Chemical Storeroom, Laboratory of Zoophysiology