1880.] Fired Gunpowder. 205 



either as a primary or secondary product prior to removal from the 

 explosion vessel, we have as follows : — 



Experiment No. 40, F.Gr. powder. Density *6, hyposulphite found, 



18*24 per cent. 



Calculated Calculated 

 solid products. gaseous products, 

 grms. grms. 

 From analysis of solid products .... 170*268 . . 125*220* 

 From analysis of gaseous products , - 172*509* . . 122*979 



Experiment No. 42. F.Gr. powder. Density *7, hyposulphite found, 



18"36 per cent. 



Calculated Calculated 

 solid products. gaseous products, 

 grms. grms. 



From analysis of solid products ..... 200*191 . . 144*547* 



From analysis of gaseous products . . 200*220* . . 144*520 



Experiment No. 47. F.G. powder. Density *8, hyposulphite found, 



19*95 per cent. 



Calculated Calculated 

 solid products. gaseous products, 

 grms. grms. 



From analysis of solid products .... 231*652 . . 162 335* 



From analysis of gaseous products . . 229*392* . . 164.595 



Calculating now in the same manner the quantities of solid and 

 gaseous products on the assumption that the hyposulphite found was, 

 prior to removal from the explosion vessel, in the form of mono- or 

 poly-sulphide, we have from the same experiments : — 



Experiment No. 40. 



Calculated Calculated 

 solid products, gaseous products, 

 grms. grms. 



From analysis of solid products 157*273 „ . 133*842 



From analysis of gaseous products .. 168*136 .. 122*979 



Experiment No. 42. 



From analysis of solid products 185*914 . . 155*722 



From analysis of gaseous products .. 197*118 .. 144*520 



Experiment No. 47. 



From analysis of solid products 211*462 . . 176*694 



From analysis of gaseous products . . 223*561 . . 164*595 



* Water iucluded. 



