84 



SILVER-LEAD DEPOSITS OF EUKEKA, NEVADA. 

 List No. 1 — Continued. 



Description. 



BLACK. STRATIFIED UME&TONE. 



Compact crystalline black limestone 



35 I Compact crystalline white stained limestone. 

 Compact crystalline black limestone 



Averages. 



Cents. 

 81 



11I.ACK UKOKEN LIMESTONE. 



Broken black limestone - 



Broken yellowish stained limestone 

 Broken reddish stained limestone ... 



30 J 



second series of assays. — The Roman numerals on the northeast side of the 

 main drift correspond to another set of samples which were taken in the 

 same drift at the designated spots. This second set of samples was taken 

 in order that a comparison might be made between the assay values of the 

 limestone and the electrical phenomena observed by Dr. Barns at the same 

 points. They are only given here that as many assays as possible may be 

 brought to bear on the question of the impregnation of the limestone, and 

 will be referred to in more detail when the results of Dr. Barus's work are 

 examined. 



LIST No. 2. 



Description. 



Averages. 



VII 

 VIII 



XI 

 XII 

 XIII 

 XIV 

 XV 

 XVI 



xvn 



XVIII 



Blue shale 



Slightly stained black stratified limestone . 



Same less stained, with calcite 



Broken friable white limestone 



Same slightly stained 

 Same very white 



.do . 



Sam i' bncciati'il and slightly stained 



Broken friable white limestone 



Broken brecciated limestone stained black. 



Reddish stratified limestone 



Black broken stained limestone 



"White broken stained limestone 



.do . 



Same slightly stained — 

 Black stained limestone . 



LOJ 



