cales which are printed from en- In the center of the paper disk is placed the plate to hospitals, as well as churches and courts of law. Pieces of be divided, and from the center of the plate rises gine divided plates, and are therefore very nearly accurate. oak, usually %% to 4 inches broad, 12… … been possible to attain by any other means. works the easiest and will answer every METHOD OF GRADUATING INDEX PLATES. 5. The layer of asphalt will also prevent purpose. the spreading of fire from one floor to an- In a subsequent article a simple gear The other consists in dividing the plate by aid…
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