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102
LIBRARY ARCHITECTURE
The "Barrett" Book Support is made of bent wire. Fig. 43 shows its construction. It will be seen that it grips a shelf, and holds the books on the shelf underneath firmly and rigidly near the top, a point where a small force is much more
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effective than if applied at the bottom. It is easily adjusted, and is very cheap.
The Liverpool Public Library has a support for thick folio volumes which will not stand upright. It consists of a strip of iron, with flanges, screwed to the under side of the shelf above that on which the folios stand; on it another piece slides, and hangs downwards for about 9 inches. In use, the suspended portion is pushed along to the side
