SUBTERRANEAN GASES 
265 
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. 
1904. 
May 5. 
20.4 
Good. 
May 0. 
20.4 
.do. 
May 7. 
20.3 
Bad. 
May 8. 
20.7 
Good. 
May 9. 
'20.5 
.do. 
May 10. 
20.4 
Gas rising. 
May 11. 
20.5 
First-class. 
Mav 12. 
20.4 
Good. 
May 13. 
20.5 
First-class.... 
May 14. 
20.5 
Good. 
May 15. 
20.3 
Gas rising- candles just burn 
May 16. 
20.4 
Good. 
May 17.•_ 
20.5 
Good on levels- gas in winzes and shaft. 
Mav 18. 
20.4 
Bad. 
May 19. 
20.3 
Bad; candles will not burn... 
May 20. 
20.4 
Good. 
May 21. 
20.5 
First-class.. 
May 22. 
20.4 
Good on levels, winzes, and shafts. 
May 23. 
20.6 
Candles will not bum. 
May 24. 
20.2 
Very bad. . 
May 25. 
20.2 
.do. 
May 26. 
20. 4 
Good. 
May 27. 
20.4 
Gas rising, but candles bum. 
May 28. .. 
20.4 
Good. 
May 29. 
20. 4 
.do. 
May 30. 
20.4 
Candles will not burn. 
May 31. 
20.3 
.do. 
20.3 
.do.• 
20.2 
.do. 
20. 1 
.do. 
20.3 
Good. 
20. 4 
.do. 
20. 4 
.do. 
20.5 
.do. 
20. 4 
.do. 
20. 4 
A little gas. 
June 10. 
20.5 
.do. 
June 11. 
20.5 
.do. 
June 12. 
20.5 
.do. 
June 13. 
20.5 
.do. 
June 14. 
20.5 
Candles will not burn. 
20.5 
.. .do. 
20.5 
.do. 
20.5 
Good. 
20.5 
Candles will not burn. 
20. 5 
.do. 
20.5 
.do. 
20.5 
.do. 
20.5 
. .do. 
20.5 
. .do. 
20 5 
. .do.. 
20. 5 
. .do. 
20.5 
_do. 
J une 27. 
20 5 
.do. 
Weather conditions. 
Sunny. 
Do. 
Snow. 
Sunny. 
Do. 
Do. 
Do. 
Do. 
Do. 
Cloudy. 
Do. 
Snow. 
Sunny. 
Cloudy. 
Sunny. 
Do. 
Sunny; snowfall. 
(?) 
Sunny and high southwest 
wind. 
Sunny. 
Cloudy and rain. 
Cloudy. 
I 
Sunny. 
Cloudy. 
Sunny. 
Do. 
Do. 
Do. 
Cloudy. 
Snow. 
Do. 
Cloudy and cold. 
Do. 
Sunny. 
Rain. 
Cloudy and rain. 
Do. 
Do. 
Do. 
Do. 
Sunny. 
Do. 
Rain. 
Cloudy and cold. 
Cloudy and rain. 
Sunny. 
Do. 
Do. 
Do. 
Do. 
Rain. 
Do. 
Hard rain. 
Sunny. 
