...17-332 1 31,003 13-840 The specimens were crushed almost to powder by the violence of the concussion ; it appeared, however, that the fracture occurred in vertical planes, splitting up the specimen iu all directions. Cracks were noticed to form some time before the specimen finally gave way ; then...

...one another. The mean compressive resistance of the cylinders, varying in height from 1 to 2 inches, and about 0-75 inch in diameter, is given in the following...planes, splitting up the specimen in all directions. Cracka were noticed to form some time before the specimen finally gave way; then these rapidly increased...

...of glass which were exposed to view during the crushing process, illustrated this subject further : cracks were noticed to form some time before the specimen...increased in number, splitting the glass into innumerable irregular prisms of the same height as the cube ; finally these bent or broke, and the pressure, no...