Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 641
t is exhausted partlyby an outlet in the roof and partly by numerous registers in the ceilings ofthe galleries. From this central outlet and from the large flues of the reg-isters the air passes into the ventilating-tower over the great chandelier, whichsupplies, in its heat, a part of the motive…
Mechanical drawing
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