Santa Fe new Mexican. [volume] (Santa Fe, N.M.) 1898-1951, 1900-09-07
HOW TO EXAMINE A MINE.
. Good Set of Rules for Experts and Pros

pCCtOAcs
H. e. Sheldon, E. NJ, in the Mining
and Engineering Review, gives the fol-
lowing rules for the> examination of
rience.
Fully understand and write in your
report:
l. The History of the M~ine.-Tradi-
tiOns n title, perfect or not. All ex-
listing data of the mine, as pamphlets,
maps, ores, assays, records of work
done, ETC., should be collected and care
fully studied. The mining laws of the
district should be fully understood SO
that a perfect title may be given to the
purchasers. In the United States the
usual transfer of a United States pat
ent or recorders title is sufficient.
2. Geographical Position.-Accurate
maps should be prepared Of the country
and mining district, giving the roads
and distances to the nearest railway
steamers, stages or other lines of COM
munication or transportation. Stats
ties may be made out of freight, fares
trains, tables, etc.
3. Climate, Water, Fuel, Timber, Etc
Careful observations should be made
as to climate, acres of fuel or timber
number of inches of water for milling
purposes, salt, sulphur, lime, building
materials, agricultural anG
supplies. Extravagant terms should bt
avoided and precise and concise stats.
tics alone taken and offered to the in.
terested parties.
4. Geological Structure of Country
Rockville capitalist usually cares lit
tie whether the mine is in diorite
quartzite, silurian limestone, or is in {
contact vein, as long as pay ore is
found in sufficient quantities to declare
dividends. Do not, therefore, indulge ii
theories as to the formation of lodes
etc, but allude only to plain, practica
facts In a clear, concise manner
Sketches and photographs will be very
appropriate, usually conveying quicker
and clearer impressions of the Subjec'
under examination than any amount O.
words.
5. Size and structure Of vein, witt
map of all work done in place, eleva.
ton and section, giving course, dip
width of vein, character of walls, faults
breaks, horses, slides, cross courses, etc
Correct and complete maps Tin place
section and elevation) should be made
giving the course, dip, width of vein
character of walls, faults, horses, slides
breaks, cross courses, ore seams, etc.
and barren rock, water. all work done
ClC. lIlCSC Will COIiSlfluIC q PllllSlpa
part of the examination. They SHOULD
be accompanied by sketches or photos
and will show the probabilities as tt
the direction and force Of the veil
which may be nationally INDUCED in. 4
plan for working the mine to the bes
advantage (bOth immediate and future
may close this section.
6. Character and Quality of the Ore!
Assays and Analyses) and Gangue.-
Careful samples of ores at any mill o.
reduction works, n of tailings, Stag
etc., should be made. They should b.
average samples. These should be as
sayed and the values per ton estimated
as well as the per cent reached in tn
working. Extreme caution should b'
exercised in order that no Sailing" cal
be perpetrated. The mine must be Wis
tied and sampled in all it's works ant
groupings. A map should be taker
along to mark the localities of the sam
pies, and they should be carefully num-
bered and recorded, as we'll as the re
suits, which should not be known tt
outsiders. Each sample should be sack
ed and sealed under eye of expert
Samples should be taken at random tt
avoid any possible collision.
7. Quantity of (%probable supply of.
Pay Ore (deduced from work lone ant
probabilities).-The ore in sight will
serve as one Of the most important
guides toward determining this fact
Another is the probability" Of a con.
tinuance of the ore.
8. Cost Of Mining, Hauling, Milling
This depends on the price of labor, sup.
plies, fuel and timber, freights on ma
chinery, supplies, taxes, etc.
9. Method of Reduction whether by
amalgamation, lixiviation or smelting),
The report should embody at this
point a clear statement Of the most eff