280 



PROF. W. A. BONE AND OTHERS ON 



joint, B, and controlled by the handwheel, C. Each cylinder is held by two studs in a 

 cast-iron base which is bolted down to the experimental table. The joints and valves 

 of the cylinders are so accurately made that even hydrogen may be stored in them at 

 a pressure of 100 atmospheres for months together without appreciable loss. 



(D). The Explosion Bombs. 

 Two explosion bombs are included in the installation, the one of cylindrical bore 



TO HIKING WLVC MO 

 STHNDHRD BOi/fOON 

 PtCSSVKC 



Fig. 4. 



and approximately 103 c.c. internal capacity, and the other having a spherical cavity 

 of approximately 275 c.c. capacity, as follows : 



(l) The Cylindrical Bomb (Bomb A, fig. 4) was machined from a solid forging of 

 open-hearth steel and accurately bored along its axis so as to make an explosion 

 chamber, A, 1 inch in diameter and 8 inches long (capacity circa 103 c.c.). It is 



