SUBTERRANEAN GASES. 267 
Record of barometric stand and gas conditions in the Conundrum mine, Cripple Creek, on 600-foot level — 
Continued. 
Date. 
Barome¬ 
ter at 
portal 
of adit. 
Air conditions in mine. 
Weather conditions. 
1904. 
August 21. 
20. 4 
Rain. 
August 22. 
20.5 
.. .do. 
Clear. 
August 23. 
20.5 
.do. 
Do. 
August 24. 
20.5 
Candles will burn. 
Do. 
August 25. 
20.6 
.. .do. 
Cloudy. 
Rain. 
August 25. 
20.5 
.do. 
August 27. 
20.5 
.. .do.'. 
Clear. 
August 28. 
20.5 
.do. 
Cloudy. 
Rain. 
August 29. 
20.5 
. _.do. 
August 30. 
20.5 
.. .do. 
Do. 
August 31. 
20. 4 
Some gas after noon. 
Clear. 
September 1. 
20. 4 
Candles will burn.. 
Rain. 
September 2. 
20.5 
,. .do. 
Cloudy. 
Clear. 
September 3. 
20.5 
Air good. 
September 4. 
20. 4 
Do. 
September 5. 
20. 4 
. .do. 
Do. 
September 6. 
20.5 
Do. 
September 7. 
20. 4 
.. .do. 
Do. 
September 8. 
20. 4 
Some gas to-day. 
Do. 
September 9. 
20.4 
Mine closed. 
Do. 
September 10. 
20. 4 
Air fairly good. 
Do. 
September 11. 
20.4 
Bad. 
Do. 
September 12. 
20.4 
Air fairly good. 
Do. 
September 13. 
20.5 
.do. 
Do. 
September 14. 
20.5 
. .do. 
Do. 
September 15. 
20.4 
Cloudy. 
Do. 
September 16. 
20.4 
.. .do. 
September 17. 
20.5 
Clear. 
September 18. 
20.5 
.. .do.... 
Do. 
September 19. 
20.5 
. .do. 
Do. 
September 20. 
20. 4 
.. .do. 
Rain. 
20.5 
do . 
Do. 
September 22. 
20. 4 
. .do. 
Cloudy. 
Do. 
20. 4 
.do. 
September 24.... 
20. 4 
.. .do. 
Clear. 
20.5 
.do. 
Do. 
September 26. 
20.5 
.do. 
Do. 
September 27. 
20.4 
.do. 
Cloudy. 
September 28. 
20.5 
.do. 
Do. 
September 29. 
20.4 
.do. 
Clear. 
September 30. 
20.4 
.do. 
Do. 
20. 4 
A little gas- candle will burn. 
Clear and warm. 
20.3 
.. .do. 
Do. 
20.3 
Gas bad after noon. 
Do. 
20.3 
Some gas in winze. 
Do. 
20.3 
.do. 
Do. 
20.3 
.do. 
Do. 
20.3 
.. .do. 
Do. 
20.3 
_do. 
Do. 
20.3 
_do. 
Do. 
20. 3 
. .do. 
Do. 
November 7. 
20.4 
Good air. 
Do. 
November 8. 
20.4 
.do. 
Do. 
November 9. 
20.3 
Ran men out at 2 p. m. 
Snowing. 
November 10. 
20.3 
Candle will not burn; gas very bad. 
Do. 
