292 
PROFESSOR OSBORNE REYNOLDS AND MR. j. H. SMITH ON A 
Table VI.—Cast-iron. 
Oscillatory weight, 24'9G lbs. Diameter of Specimens, *345 inch to '35 inch. 
Number. 
Revolutions per 
minute. 
Maximum 
stress. 
Minimum 
stress. 
Range of 
stress. 
Reversals for 
rupture. 
1 
1941 
6-67 
5-91 
12-58 
0 
•7 
1493 
4-01 
3-46 
7-47 
39,200 
o 
O 
1 496 
4-02 
.3-47 
7-49 
36,600 
4 
1399 
3-53 
3-02 
6 -55 
6,000 
5 
1396 
3-51 
3-01 
6-52 
111,600 
6 
1350 
3 • 35 
2-84 
6-19 
0 
7 
1305 
3-10 
2-62 
5-72 
620.000 
Summary of Results. 
The results of tests for mild steel, given in Table III., are plotted in Diagram I., 
the range of stress being taken as ordinate, and the reversals for rupture as abscissa. 
