Part, §

 1 Pre,  5|      inches in diameter, and was 7 feet 10 inches high. The
 2 Pre,  7|                                  7.~ ~In the year 1717, when
 3 Exp    |         quadrant on the big beam 7 1/2 feet from the axis,
 4   I,  2|       fire-machine, viz., 1018 2/7 square inches, weighs 21,575
 5   I,  6|        29 inches high and 1018 2/7 inches in square, weighs
 6   I,  6|       the piston contains 1018 2/7 square inches.~ ~
 7   I,  7|                                  7.~ ~That most learned Englishman,
 8   I,  7|       density of the air~ ~ ~ ~ ~7 Miles up in the air~ ~ ~ ~
 9   I, 12|       have to be reduced to 6 or 7 inches in diameter instead
10  II, 14|        house are pressed down is 7 feet; but as this only takes
11  II, 20|       Königsberg has a cylinder, 7 1/2 feet high and 28 inches
12  II, 21| Hungarian machine has a cylinder 7 1/2 feet high and 27 inches
13  II, 21|         piston-area being 1018 2/7 square inches, and the power