Table 232. 



CHEMICAL AND PHYSICAL PROPERTIES OF FIVE DIFFERENT 

 CLASSES OF EXPLOSIVES. 



211 



* One pound of clay tamping used. t Two pounds of clay tamping used. t Rate of burning. 



§ Cartridges i| in. diara. || For 300 grammes. 



Compiled from U. S. Geological Survey Results, — " Investigation of Explosives for use in Coal Mines, 1909." 

 Smithsonian TABLts. 



