625 
Assays.—Previous to the writer’s visit a small number of samples had 
been sent to this Bureau for analysis. They gave exceedingly favorable 
results, and upon this basis a provisional estimate of the probable cost of 
mining and treatment of these ores was made for the prospectors in that 
district. However, this estimate was held over until further sampling 
had been done and some study of the region completed. The writer 
regrets that the results of the assays and of the personal examination 
of the district do not induce us to place any great confidence in the 
earher sampling and reports from the camp in that region. However, 
negative determinations are often as valuable from a commercial stand- 
point as are positive ones and therefore we shall here give the results 
of both samplings to show what erroneous ideas may be deduced con- 
cerning a district even when it is the effort of the interested parties to 
be perfectly honest, for the latter often mislead themselves as badly as 
they do those who are on the outside. 
Two tables (Nos. II and III), giving results of analyses follow, the 
former of ores collected by prospectors and forwarded to this Bureau, 
the latter of samples taken by the writer and assayed by the same 
assayer.* 
Table I. 
er a ; Sar 
| Number. Gold. | Silver. Copper. 
| = Be 5 oe _ eee ae 
| Per cent. 
| ith wearer tebenes cess swocet SoG he ne ees ee eee Color. | Trace 7.67 
| ; 0.4 oz. 10.56 
[Pia GAiee - > SBNARnG Gee BP We 7 << a enn anne Y Oo eae rae $8. 27 ake ; 
SoS re Se ea es a Care See see nee Color. Trace. 4 
pie. Gene Seen serte seein se aeeeeenr ons Swe nene ee cee NM ay 7 edategaa ase. 17 
[Eee SR Na ee ret Pe eo 
Table III. 
Number. | Gold, oz hed Copper. 
Per cent. 
Deane see ee Ss conns op nase encase ee eee eee ee ees Trace. |---2....--.- 0.08 
err et a Be Midis he casi tn ebetae Steere 0.05 — $1. 03 1,24 
Bee eae a eta Ta a os 5 le ee nee ee 18 8.72 2.91 
“Ss SEE SS ee ee See ee wake PAGO. e| cane cee” 07 
ere ie aie Meee NE. .02 | 41 2 
De ge oe dnc cncwnn as. uss-2esc See ee - 06 1,24 26, 21 
1 AOL: SSS ae a IEE, oR Rea Ree PE Pe el MA TOCG; |o2ko seat oS .61 
Lk <a se eee nee nist SS ae ane eee Fee, PPTECG:) (oso ee 40 
1 RE ES ao i LES PEM Be RST pee lnc n Tne] SETACG Soe see . 03 
MA cig no ecn anno dnuiwc dune appa weean eee. Trine: | 1.15 
11 Bae caked ns Soon Seen tena eme ny meee eee eemene PRTAGCO, | 2 9o0 coe OF 
eee neo oien swede edad es PUTBCO so) he Sey .14 
* All assays are by Paul J. 
writer are due. 
43814——4 
Fox, of this Bureau, to whom 
the thanks of 
the 
