Hong Kong Builder
demonstration room and light experiment room together with lecture and store rooms and lecture office.
On the first floor-in addition to the main chemistry laboratory, a small laboratory for advanced work, a lec- ture room, micro-chemistry room, physical chemistry room and balance room.
On the second floor-the biology laboratory, a lecture theatre, a smaller lecture room, a library and reading room, a museum and herbarium, staff common room, and full facilities for elementary laboratory work. A research laboratory is also situated on this floor. In the photo- graph of the biology laboratory on this floor it will be noticed that the seating arrangement has been stepped up. This arrangement has been planned in order to provide a full measure of north light for microscope observation.
The construction of the building is of reinforced concrete frame with concrete hollow block and rib floors. with expansion joints at suitable points to take up sea- sonal movement in the structure. The roof over the
lecture theatre is of reinforced concrete truss construc- tion, the space between the roof and suspended ceiling being used as ventilating chamber for the theatre. The fume cupboards in the chemistry department, which are built of teak, are placed on external walls and are set outside the walls in order not to interfere with circula- tion. Each fume cupboard has a duct at the top and
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Lateral and longitudinal cross-sections of the east wing of the building are shown on this page. The construction of the Lecture Theatre on the second floor with the reinforced concrete trusses carrying
the Greenhouse is clearly shown in these drawings. Advanced and special Laboratories are situated on the two floors below the Lecture Theatre.
bottom for extraction of lighter and heavier than air gases. The ducts are collected and carried up to an exhaust fan chamber above the roof.
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Gas, water, electrical and sink
waste services are laid in trunks
constructed in the concrete floors, so that if it is desired to replan the internal arrange- ments of the building at any time, benches may be connected up without structural difficul-
ties.
Special mention must be made of the library, the table tops of which were constructed of solid slabs of Manila hardwood, different woods being used for each
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