522 ON OLEFIANT GAS. 



made its escape into the air, if the detonating tube 

 was turned up. I attempted to ascertain the 

 weight of this charcoal, but was not successful. 

 It was necessary, in order to collect it on the filter, 

 to moisten it in the first place ; and it was found 

 impossible to dissipate the whole of the water, 

 without altering the filter. Hence it was always 

 a great deal too heavy, never weighing less than 

 ~th of a grain. 



From the preceding table we easily deduce the 

 following : 





efiant 



X . 



O co 



CO 



ci 

 bJO 





Carbonic a- 

 cid formed. 



1 



• 



CD 





Puieol 

 gas. 



Pure 



gen ga 



O 

 • 1-1 



■M 



Total. 



S3 





O 



SI 



< 



• rH 



CO 



CD 



i 



i S3- 2 



26.64 



8.16 



68 



5-5 



94-5 



2 



33- 6 



27.98 



8.42 



70 







3 



33- 6 



27.98 



8.42 



70 







4 



33- 6 



27.08 



8.32 



69 







In the first experiment, 5.5 measures of oxy- 

 gen gas went to the formation of carbonic acid, 

 and 3*74 were found uncombincd, after the ex- 

 plosion, by the test of nitrous gas. Hence it fol- 

 lows, that 17.4 measures of oxygen gas, combined 

 with 33.2 measures of defiant gas deprived of a 



