Tons

For soft fluid compressed steel.......................

115

For medium fluid compressed steel...................

108

For hard fluid compressed steel......................

150

Tons

For soft cast iron....................................

51

For medium cast iron.................................

84

For hard cast iron...................................

82

"It will be noted in reviewing these pressures that those for steel appear to be a little irregular, but they are recorded in the results of the experiments cited."

This interesting subject might, with profit, be pursued much further and such investigation is earnestly recommended to the seeker after facts in this respect; but the limits of space will not permit a more elaborate exposition in this chapter.