I&NSOME.] DISTRIBUTION OF ORES WITHIN THE LODES. 97 
lodes of Group II as they approach the Silver Lake lode, which is 
itself of Lower grade, and in occasional spots where the lodes retain 
their width but are too Low grade to work. Tlie pay shoots of these 
odes also -row Longer with depth, which is apparently due to the 
increasing length of the fissures in connection with the dip of the 
Silver hake Lode. In the Silver Lake lode the pay ore is found in 
bunches of varying size; bid as these bunches usually occur wherever 
he filling of the fissure is wide and firm they probably do not consti- 
tute a marked exception to the foregoing general rule. In the Royal 
riger mine not enough work has been done to reveal the real shape 
md exteni of the ore body. In the North Star mine, on Little Giant 
Mountain, the ore occurred irregularly in a stringer lead, but the old 
jtope maps show the pay shool as a whole to have been about 700 feet 
n Length on the Levels and to have pitched to the southeast. Other 
small ore bodies were found farther in the mountain, to the northwest, 
[n the Sunnyside and Sunnyside Extension mines the pay shoots are 
nainly lenticular bodies 30 or 40 feet in Length, Lying on the hanging 
>r f ool wall side of the lode, or between plates of rhodonite. Owing 
;o the lack of maps, the exacl sizes and shapes of these ore bodies are 
lot known. 
In the Silver Queen mine, on Bear Creek, the ore occurs in three 
separate pay shoots, pitching south and separated by from 12 to 15 
Vet of lean quartz. The noil hern pay shoot consists of low-grade 
jhalcopyrite, with subordinate galena and tetrahedrite. The middle 
>re body is rich in an argentiferous sulphobisinuthite of lead assoei- 
ited with galena, but changed to chalcopyrite in stoping upward from 
ihe tunnel level. The south pay shoot is almost wholly galena. The 
levelopmenl of this mine is very superficial and the three pay shoots 
nay, with more extensive workings, be found to be simply portions 
)f one ore body. 
In the Camp Bird mine the pay shoots, so far as known, appear to 
>c coextensive with the lode, disappearing only where the fissures 
ocally contract to a mere crack. What is known as the west pay 
moot isabout L, 200 feet in Length, and others occur along the lode, 
separated by pinches. The pay slioots are stated to be increasing in 
ength with depth. As previously pointed out (p. 89), the auriferous 
portion of the lode lies next the hanging wall, with a silver-lead streak 
lear the foot wall. 
In the Tomboy, also, the pay shoots, as indicated by tlie stopes, are 
ong, and are practically identical with the lode itself, disappearing 
>nly where the latter is pinclied. According to Mr. John Ilerron, 
superintendent, the pay shoots lie flat in the lode, one above another, 
md extend diagonally across from wall to wall. The} 7 are said, more- 
>ver, to be often connected with certain post-mineral fractures which 
jross the vein diagonally in the same direction (see p. 209). There 
vas no means of verifying these statements, and such minor pay 
Bull. 182—01 7 
