﻿PHYSIOLOGICAL INSTITUTE
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with indications of their proper places. Every room also has a so-called breakage book, in which students and personnel make a record of what has been broken so that it can be replaced as soon as possible from the central store.
To further facilitate the finding of objects there is a complete inventory in card catalogue form on each floor, so that every worker can find his way about perfectly from the first day he enters the laboratory. A clerk is provided to attend to the work of keeping up these card catalogues.
The fact that all laboratory necessities are liberally provided and that everything has been done
ant, he sounds the combination of tones assigned to him. These particular tones are simultaneously reproduced by the thirteen other telephones distributed over the building. No matter what part of the building he may be in he will know that he is wanted and will go to the nearest telephone. A special tone or combination of tones is assigned to every member of the scientific and technical staff and a list of these signals hangs at the side of each telephone. It might be supposed that the frequent ringing of these telephones and the necessity of being on the lookout for calls would be annoying. Experience has shown, however, that this is not the case. In such rooms as
Fig. 10.—Class Laboratory for Physiology
on the part of the late Director to promote order, cleanliness, and neatness, causes every one to feel a moral obligation to co-operate in the same spirit. Experience indicates that the system works well.
Another convenience is the telephone system. In a large building it is difficult to locate a person by telephone if he is moving about from one room to another. In the Institute the house telephones have been constructed so that every instrument produces two tones, one high and one low. If the Director wishes to speak to an assist-
the lecture rooms the telephone may be temporarily disconnected when desired.
Histology
As stated above, both histology and microscopic anatomy are taught in the physiological laboratory. Formerly this was the case evèry-where, but gradually a division has taken place at most universities. From a purely scientific point of view much may be said in favor of such a separation. More justice is done to histology, since it obtains workers who devote themselves exclu-