Appleton's cyclopædia of drawing, designed as a textbook for the mechanic, architect, engineer, and surveyor (1866)
Worthen, William Ezra, 1819-1897, [from old catalog] ed, Appleton, firm, publishers, New York. (1866. D. Appleton & co.) [from old catalog] · New York, D. Appleton and company · leaf 171
e. If the squares abovethe point, when the steam was cut^gff, be counted, they will be foundto amount to 50, those below toabout 68; so that while, by anexpenditure of a quarter of cylinder full of steam, we get an amount ofpower represented by 50, we get 68 without any further expenditure,… … Mean pressure at different densities, and rate of expansion. InitialprcBBure. EXPANSION BY EIGHTHS. 3 •J i i i- i 1 10 9.80G 9.G37 9.187 8.405 7.417 5.965 3.848 15 14.844 14.456 13.781 12.697 11.126 8.947 6.778 20 19.792 19.275 18.875 16.980 14.885 11.930 7.697 ! 25 24.740 24.093 22.903 21.162…