224 GUN-COTTON AND GUNPOWDER. 
The quantitative gas analysis was made according to the following plan: 
Absorption analysis. 
Volume. | Pressure.| Temp. | Vol. at 0° 
and | metro 
fo) 
Original volume: .----- -..------------+---- 114.78 0. 6242 19.1 66. 94 
After absorbing CO?-.--- een. see 84, 88 0. 6048 20.2 47.81 
Combustion analysis. 
Vol. at 0° 
and 1 metre 
Volume. | Pressure. 
Onennalsyo lume cere eee eee ere 46. 72 
ATieTrAdditiOMl OL eit sc-clees - c= Seta cscs <2. - 87.75 
Atiter Ad dition On OXY PCN eee. eee eae 121.98 
ASO? CRG OEM. 5 355 Bes see Gasopsssce caeace 91.71 
After absorption of CO?...---.----.-------- 59,19 
Mera GitONs Ofdis 2 Sasi< cocincis Gee iee's seer 101. 32 
ANOINe <p loplONet esa b= 2ee)--e seen eee 55,15 
The quantity of carbonic acid obtained from the absorption analysis 
==19.13. The nitrogen found by known methods is 11.37 volume. ‘The 
combustible gases are determined by the formula already mentioned in the 
case of the analysis in the Torricellian vacuum, as 
Warpomicomide cts fog. 45h ke aki he =P, * 26.01 
Miron) NIN) Qu, Sakis TU UE, SPC Oo he Pt 651 
IEMyaromen Gey Oh 2.00 5. Ou) GA == PP 283 
in which P=35.35, P,; 32.52, P,—27.44. The gun-cotton used in the 
analysis corresponded to the formula C*H'N°O*, from which the water which 
cannot be directly determined, as well as the eliminated charcoal, may be found. 
Hence the mixture of gun-cotton gases consists of— 
By volume. | By weight. 
Carbonic oxide 
SESS USES ASO Sana SSR BEe BeeOe San Sebo2 29. 97 
un umicacilnins 25/5222 Js ee es Sk ee 33. 86 
Mamehigense ee soc cn! 2. ht eee. cael os de 4.28 
LEN UW (EG 0). S25 Se ea ea SU, AE RE BRINE 5, 7 0. 24 
Lian. SOE ee eee ee) 2 pea ea ee eg DI Hi 13. 16 
POETS Ube dency hais NR aan glee SET: |e FRR Sally ees 1. 62 . 
AQUEOURMVAPOD ee cteeeet os oo. cass camer ce tise boeee oo eee 16. 87 
100. 00 
