172 REPORT—1845. / 
pours of tar were visible, and the flame was yellow, but of small illuminating 
power. 
A. Estimation of olefiant gas and carbonic acid. 
Volume. Pressure. Temp. | 1m. at0°C, 
Ene) EES OPIMBM Rear EDERAL 1242 | 0-6462 75 78:12 
After absorption of olefiant gas ............ 121°0 0°6529 75. 76:89 
After absorption of carbonic acid ......... 1115 06430 75 69:78 
B. Examination of gas freed from olefiant gas and carbonic acid. 
ASARETIRCH. “Lo ecestveacesescaeenencunceasareceases 147-2 0-4956 75 71:01 
After introduction Of 0  ...cessseseseeeeesees 2326 0:5800 75 13131 
After combustion ..........+ Bvelcaasaviteress. 188-4 0:5363 77 98-27 
After absorption Of CO, .....cceesseseceeeeee 156-1 05108 74 7763 
After introduction Of H_ .....seccsessseeseees 291°6 06361 77 180-40 
After COMDUStION ......csssecsscsseeceseeeeeees 144-0 0:4927 77 69:00 
Iiira en TT ew rie yw piel OO 
Carbonic acid”... . . . se) | 610 
Carbonic oxide. .. . - » 19°32 
Light carburetted hydrogen eee" Groen 
Pivdrogen. «eee eee 8 PETRA 
Qlefiant gas." es ee |) AST 
100-00 
Experiment V. 
Depth of the tube in the furnace seventeen feet, thirty-two charges ; the 
stream of gas which had been interrupted for a short time possessed a peculiar 
tarry smell. There were no vapours of tar, and the flame was yellow and 
only slightly illuminating. 
A. Estimation of carbonic acid and olefiant gas. 
Volume. | Pressure. Temp. 1m. at0°C, 
RGeoriRedl | <3: Fines vss fname on seeae teak 1145 | 06414) 11-6 | 70-45 
After absorption of olefiant gas ....... cosceces 1130 | 0°6412 117 69°48 
After absorption of carbonic acid ............ 99:0 | 0°6320 10:9 60°72 
B. Examination of the gas freed from olefiant gas and carbonic acid. 
re He) boo acs salontsshenwaens  sivaemne fs 1255 | 0-4740| 12°0 56:99 
After admission of O ...... Serececssenseernes «| 2134 | 05615 11:8 114-86 
After COMDUStION ..-....sseeceseccscenevecesens : 05345 118 95-40 
After absorption of CO, 0:5197 115 80°14 
After admission of H.......... : 0:6784 11-7 216°38 
After Combustion .....cccccrscccsecececssceee oe : 0:5237 118 86°04 
Nitrogen «6006 1s. j6. paris) (GBD 
Carbonic acid. . . .- « « « 12°43 
Carbonic oxide .. . on ee ST 
Light carburetted hydrogen ote! ate 
Hiydrogen 5 (jis, ne) « e ” FG2 
Olefiant gas . . . «. « - - 1°38 
