250 



GEOLOGY OF THE COMSTOCK LODE. 



Table II.— YELLOW JACKET SHAFT. 



lOlistTvaijoim laken by tbo official in charge, in drill-holes 3 feet deep; records kindly famished by Capt. Thomas Taylor.) 



= 53.1. 6 = 0.0334 + 0.0009. 



Depth. 



1877. 

 Aug. 28 I 

 Aug. 30 

 Sept. 11 

 Sept. 14 

 Oct. -27 

 Oct. 30 

 Nov. 4 

 Nov. It' 

 Nov. 14 

 Nov. 28 

 Dec. 15 

 Dec. 2!) 



1878. 

 Jan. 20 

 Fi-b. 15 

 Mar. 22 

 Apr. 1 

 May 27 

 June 22 

 Aug. 10 

 Aug. 30 I 

 Due. 7 



Wet 

 Wet . . . 

 Wet - 

 Dry... 



Dry 



Dry .-. 

 Dry ... 

 Wet . . . 

 Dry ... 

 Wet... 

 Wet . . . 

 Wet... 



Wet. 



Dry.. 



Dry.. 



Wet 



Dry 



Wet 



Wet . 



Wet . 



Wet 



1,000 

 1,054 

 1,095 



1,167 

 1,212 

 1,316 

 1,333 



1, 451 

 1,600 

 1,660 

 1,7.:0 



2, 017 



S3. 

 85.0 

 85.0 

 84.0 

 88.0 

 81.0 

 39.0 

 92.0 



98.0 

 95.0 

 100.0 

 104.0 

 106.0 

 108.0 

 110.0 

 118.0 



op, 

 81.4 



81.5 

 82.3 



-1.5 

 -3.3 

 -0.6 

 -1.0 



+0.7 

 +0.3 

 -1.2 

 +2.6 



+1.9 

 +4.4 

 -2.1 

 +2.4 

 +2.3 

 -0.6 

 -0.6 

 -0.6 

 -2.5 



' Probivble error of an observation =: ± 1^. 4. 



