THIS diagram of the metric units of length, area and volume is printed on a sheet of paper about 3 feet 6 inches by 2 feet 6 inches. The various measures are shown full size. To be of the greatest use ...
IN the article entitled “Scientific and Practical Metric Units” which appeared in NATURE of October 24, 1918, reference is made to the convenient bridge to the metric system which exists in the ton, ...
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