Table 264. 



CHEMICAL AND PHYSICAL PROPERTIES OF FIVE DIFFERENT 

 CLASSES OF EXPLOSIVES. 



243 



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



§ Cartridges ij in. diam. || For 300 grammes. 



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



M(THSONIAN TABLES. 



