246 



GEOLOGY OF TDE OOMSTOOK LODE. 



Table I.— COMBINATION SHAFT. ROCK TEMPKKATURES. 



[Observations inado by tho superintendent.] 

 CoLU>LNs 3 and 4.— Observations of depth and temperature, respectively, as taken. 

 5 and C— Moans of consecutive sots, of five observations each, of depth n 

 7.— Temperature as calculated from the constants denved. 

 8. — "Error" or observed temperature minus the calculated result. 



[Depths are given in feet; temperatures, in degrees Fahrenheit.] 

 a = 66.0. b = 0.0252 ± 0.0007. 



perature, respectively. 



• Probable error of one of tbcso mean observations = +0o.5. 



