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Updated: May 12, 2025
Mark the following particulars: 1. The quantity of air breathed by forty-five persons in three hours, according to the data just given, is 3375 cubic feet. 2. Air once respired will not sustain animal life. 3. The school-room was estimated to possess a capacity of 3360 cubic feet fifteen feet less than is necessary to sustain healthy respiration. 4.
School-houses of these dimensions have a capacity of 3360 cubic feet, and are usually occupied by at least forty-five scholars in the winter season. Not unfrequently sixty or seventy, and occasionally more than a hundred scholars occupy a room of this size.
It was about this time that the Patrons of Husbandry gave evidences of a new vitality, chiefly manifested in a rapidly increasing membership. On May 19,1873, there were 3360 Granges in the United States, while nineteen months later, on January 1, 1875, there were 21,697, with a total membership of over seven hundred thousand.
By the generous aid of the king of Sweden, Baron Dickson and others, he had a balloon constructed in Paris which represented the very latest progress towards the mastery of the air, in the days before the aeroplane and the light-weight motor had opened a new chapter in history. Andrée's balloon was made of 3360 pieces of silk sewn together with three miles of seams.
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