300 University Geological Survey of Kansas. 
TABLE No. 43. 
GASES OCCLUDED IN COAL. 
AS Analyses by Ernst von Meyer. 
Cubic 
em. of 
gas Car- 2 
ielded . Oxy- | Nitro- | Marsh- 
LOCALITY. ble 100 bonic aoa Sony eel Ethane. 
ems. 4 
coal at 
20° C. 
ZWICKAU. 
I. “‘Schichtenkohle:’’ 700 meters deep; 
fresh winning ire pak cae hee 38.0 2.42 eR) Wl 43 yen) Ly a 1) 
Re Do.; 690 meters deep; had been ex- 
pose uring 5 years to the ventilation air- 
current ofthe piteese- een eee 18.2 | 16.70 4.90 | 55.15 3.17 18.61 
(6) Do.; gas collected a week after (a) had 
been earn SiG ier AR ee ro REN Oe Cae ca | Lester yrs 11.40 3.80 | 60.98 3.44 18.88 
(c) Do.; gas collected a fortnight after (b) 
had been Cale Te Neale Ss SES = as aa Pee nce. 12.10 1.10 | 65.16 3.19 16.85 
© A) Dor gas collected 3 or 4 months arter 
c) had been collected, during which time the 
coal was left in a cool, dry place...............|+-++++-: 12.91 2.57 | 57.84 4.06 22..68 
(e) A portion of the same coal as (d) in 
nuts was kept heated to 45° C., with free access 
or air, and ae treated as the others to expel 
the gas, which escaped not more slowly than 
Lromythercoaleno hea ted seer eee eee eter Geren 10.65 3.20 | 74.72 |..-.-..- 9.80 
CH aS ES ag | om | o16| mgo| com) mc 
(g) Gas evolved by the usual treatment 
after the coal had been previously heated 
gps 2 bee ate conatant tomncraraee ety) eer lle ee 20 
100 eas llevar ; fresh 
ee ee ope al oc] ses | ac 
aay IV. Do.: 656 meters deep; exposed Corin 
2 years to the ventilation air-current; showe 
traces of weathering externally ............... 18.6 2.25 0.70 23.89 73.16 
We Iban levee ; fresh 
winning se re See ee alee re\l| ator cou ermeem meas to) Cte 40 
ve (a) Do.; 690 meters deep; had been 
exposed during 5 years to the ventilation air- 
current; appeared outwardly weathered ...... 13.6 7.62 2.44 50.75 15.88 22.35 
b) Do.; ll t had 
Been Cec Ee ee ee 10.10| 2.60| 50.53 | 10.18] 23.32 
(c) Do.; gas collected two months after 
(b) had been collected.................... ie eal crac 11.18 | 2.82} 67.99 |........ HOoa 
FROM THE “PLANEN’SCHE FORMA- 
TION.”’ 
(These coals were rich in disseminated 
iron pyrites; they were grayish black without 
the luster of true carboniferous coals.) 
VII. “Harter Schiefer’’: evolved gas co- 
DIOuslywEreshlyscot lense eee notdet.| 48.7 1.8 4.95 
VIII. ““Weicher Schiefer’’: evolved gas 
coplouslyetreshlyeottenseeeeeee eee renner notdet.| 38.2 1, 2 60.6 
IX. “‘Maschinenschiefer’’: evolved gas 
most copiously; freshly gotten ................ notdet.! 54.9 A; 43.9 
