﻿PHYSIOLOGICAL INSTITUTE
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GROUND TLOOR PLAN
Fig. 5
14.	Class laboratory for physiological chemistry
15.	Glass washing
16.	Dark room
17.	Laboratory for physiology class
18 and 19. Shop for making apparatus
20.	Assistant’s private room
21.	Reception room
22.	Storeroom and glass washing
The low temperature laboratory has facilities for preserving serums and organic materials that cannot be used immediately. It also contains a refrigerating machine for making the ice used in the laboratory for various purposes. The chief use of the room, however, is to carry on experiments at low temperature; this is especially useful in connection with enzymes which decompose more rapidly at room or body temperature than at one of about 0° C. The study of chemical reactions at a given low temperature would be impassible if the precipitates, obtained at low temperature, were removed by centrifugation at the ordinary room temperature. An electrical centrifuge has therefore
23.	Assistant’s private room
24.	Bacteriological laboratory	'5
25.	Physicochemical research room
26.	Observation room for animals
27.	Preparing animals for operation
28.	Operations and physiological experiments
29.	Sterilization and bandages
30.	Optical researches
been provided, as well as various other auxiliary apparatus.
A large room across the corridor (41) contains various kinds of centrifuges, a large installation for ultrafiltration, a Buchner press for making juices, an apparatus for distilling water, and the machines for the general suction and pressure systems, taps for which are found in various rooms. Adjoining this room is a smaller one (41a) which serves as a store for various objects required for experiments with the large machines in room 41; it also offers an opportunity of studying results without being troubled by the noise and stamping of the machines. A printing machine for the prompt printing of