LUNN & COHPAINII. Editors A; Proprietors. Contents: HOURS OF LABOR IN ENGLISH FACTORIES. aim PROBABLE ADOPTION BY THE PRESENT CON GRESS OF THE FRENCH SYSTEM OF WEIGHTS AND MEASURES. THE THEORETICAL AND ACTUAL POWER OF A POUND OF COAL. MISSI014, scientific american, 1866-02-10


LUNN & COHPAINII. Editors A; Proprietors. Contents: HOURS OF LABOR IN ENGLISH FACTORIES. aim PROBABLE ADOPTION BY THE PRESENT CON GRESS OF THE FRENCH SYSTEM OF WEIGHTS AND MEASURES. THE THEORETICAL AND ACTUAL POWER OF A POUND OF COAL. MISSI014, scientific american, 1866-02-10


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