CADY AND MCFARLAND.| Composition of Natural Gas. 251 
ILLINOIS GASES. 
The publications of the Illinois Geological Survey do not 
show much on the composition of the gas from the state. An 
analysis is given of the gas at Pittsfield, IIl.14° 
TABLE No. 19. 
(CATH OE, AC HWOD'E0 bs Aah BRS oi ci eke Oe ee aan ie 0.81 
(OVSEIAERELT I. ASRS Se SS GE GRRE ec TICLE Sm 3.46 
IM LGE DA WANE ee. esc ieee IS ce ac eciciie a aie ge a aes 73.81 
INSIGEO CSTR err (Rab Wiovacuchalensic tet cemedae otesond omelets 21.92 
100.00 
The large proportions of oxygen and nitrogen shown in these 
results raises the question as to whether or not air may have 
been mixed with the sample. 
Princeton Nitrogen-gas Well. 
A gas from a well at Princeton, Ill., analyzed by Dr. Rollin 
Chamberlin, of the University of Chicago, in 1907, and com- 
municated to us by letter,!** is of such remarkable composition 
and so similar in its nature to the gas at Dexter, Kan., that we 
at once endeavored to secure a large sample for analysis in the 
hope of finding considerable quantities of the rarer gases of the 
argon group: 
TABLE No. 20. PRINCETON GAS. 
(CTE Sxehal: “ONWOD co ane Rie bo Bs Giced Boe Oe Te ee 0.10 
(CTE OVO A ATOAVONGVOD CV aS ee ne eee ORG eee 0.05 
Oey DOM Pere enn. ee eee eden share Notetonere abhi Gree: Se Gun erates 0.05 
ING Gara Charrette eo cuerer siete ty oicitoarea feces asuahaccrene ne Oks SEO 
INGIET.O CETIMEC LONG archeh eon aos rome sacuchesor oye: cscepetenster sila, /eis 85.83 
100.00 
A letter was sent to the owner of the well, Mr. Geo. H. Pad- 
dock, asking that a sample be sent to the University of Kansas. 
Mr. Paddock replied that it was impossible to collect a sample, 
the casing of the well having been pulled up and the well hav- 
ing been abandoned as of no use. 
Some data concerning the well and the gas may be acted 
from Mr. Paddock’s letter: 
“At a depth of about 160 feet (through clay) the gas began 
to flow with a pressure of about four pounds. The non-inflam- 
mable gas predominated to such an extent that it would not 
burn continuously; would simply flash in puffs when a bucket 
was inverted over the end of the pipe and lighted. With hopes 
of getting more gas that would burn, the pipe was driven 10 or 
12 feet at a time until it was down about 210 feet. The inflam- 
146. Ill. Coo Surv., Bull. No. 2, p. 82. 
147. We wish to express our thanks to Doctor Chamberlin for this courtesy. 
