190 MR W. J. M. RANKINE ON THE MECHANICAL ACTION OF HEAT. 
TABLE Il—Zapansive Action of Steam. 

(1.) 2, (3.) (4.) (1.) Y (3.) (4) 
Fraction of Cy- Coefficient of gross action — z, Fraction of Cy- 
linder filled Ratio of linder filled Ratio of 
with Steam at} Expansion {Initial Pressure |Initial Pressure Expansion. |[nitial Pressure |Initial Pressure 
full pressure one to four | four to eight | one to four | four to eight 
J Atmospheres. | Atmospheres. | aa Atmospheres. | Atmospheres. 
s 
Coefficient of gross action = Z, 
with Steam at 
full pressure. 

1-000 1:000 E 1-586 1-580 
1-010 1:010 : ; 1:602 1:596 
1-020 1:020 I 92 1-620 1:613 
1-030 1:030 4 : 1:637 1:630 
1:041 1:041 5 ° 1655 1:647 
1-051 1:051 “ “04 1-673 1:665 
1:062 1062 Q z 1-691 1°683 
1:072 : : 1-709 1:701 
1083 : : 1:728 1-719 
1:093 | E . 1:748 1°738 
1104 3 : 1-767 1:757 
1115 “ . 1787 1-777 
1126 || : : 1:808 1-796 
LS 7 |} 4 “ 1-829 1817 
1149 S : 1:850 1°837 
1160 : -56+¢ 1:871 1'858 
17a 5 : 1894 1°880 
1183 : : 1:916 1902 
1195 o : 1-939 1°924 
: : 1:963 1:947 
1:987 1°970 
2-012 1:994 
2:0388 27019 
2°064 2°044 
2:091 2070 
2-119 2°097 
2-147 2:124 
2°176 9152 
2207  2:181 
2:238 2°211 
2-270 9249 
2:273 
2°306 
2°34] 
2°376 
9-413 
2-452 
2-492 
2-434 
2-579 
2-626 
2-675 
2-728 
2°784 
2°845 









