, 1903-03-17


Louisiana Purchase exposition. ant
will be a sort of guide to the mining
men of this state in the preparation OF
their exhibits. The worlds fair com
mission, no doubt, will soon issue in
structions concerning the collection
and storage of the exhibits at a desig
mated point of those specifens that
will be forwarded to st. Louis and
placed in the space allotted to Wyoming
in the mines palace.
The following suggestions concern.
ing the collection and installation OF
specimens and other materials fol-
such exhibits are given for the infor
nation of those in charge of this work
in the different states and countries,
as indicating the wishes of the exposi,
ton authorities in such matters, and
as suggesting a basis of examination
by the jury of awards:
/. The general or systematic col.
lections of rocks, minerals, ores or
fossils may be exhibited by individ.
uals, Institutions, states or govern.
ments, either on space to be allotted
to the state or foreign country from
which they come, or on space to be al
lotted directly to the exhibitor for this
special purpose. Such collections will
be accepted as exhibits and given
lauordc h,y tno i,ry n n tho hacic of thai
character, completeness and value as
scientific collections.
@. Exhibits illustrating the utiliza,
ton of minerals and rocks, include the
materials, the equipment, the process
SEES and the products associated with
the utilization of mineral resources
other than the metalliferous ores. 1t
is desired that SO far as possible the
processes be shown in. actual operation
and a limited amount of power will
be furnished for this purpose free of
charge. The space for such exhibits
may be allotted to individuals or com
panies, either directly or through the
commissioners of the state or foreign
governments.
1t is expected that when installing
certain mineral and ore exhibits under
the classes just described the materials
will be grouped, not by states or coun.
tries. but by industries, regardless Of
the state or country from which the
samples may come. Thus, there will
be separate groups of exhibits illustrat
ing the iron and steel industry, the
coal industry, the petroleum industry
the clay industry, the stone industry
etc.
3. In making collections of ores
minerals and rocks, representing the
mineral of regions, state or
countries the following suggestions
may prove of service:
%. The samples should represent
actual resources. In exceptional cases
the samples of minerals or ores may be
several feet in diameter. In other cases
transportation difficulties will reduce
the size of the samples. AS a rule, it
will be better to have any given miner
al or ore deposit represented by sew
eral samples, each about four to six or
more inches in diameter, selected from
| different parts of the vein or lode in
such a way as to show it's average
character. These samples should be
accompanied by specimens about four
by three by one inches of larger in
size of (a) the hanging-wall or roof,
o. the foot-wall or floor, (c) the gan.
que rock or associated minerals, and
(d) the typical country rock. These
specimens may in many cases also be
accompanied by specifens of oncen
trates and other materials illustrat.
ing the processes of treatment and
the finished products prepared from
such ore, mineral or rock, and,
in the case OF pulverized or
liquid materials, the quantity exhibit
ed should, in general, be not less than
one-half gallon, or two litres.
In the case of building stone for the
general collection eight-inch cubes
are recommended the different faces
to be finished in different styles as per
specifications, which will be supplied
on application, by the Chief of the de-
partment. For special marbles and
other ornamental stones, polished
slabs twelve by twenty-four inches or
larger may be preferable. All such
| slabs should be of uniform size, or as
nearly SO as possible.
(2). Each sample or lot of samples
in such exhibits as described above
should be accompanied by the follow.
ing.
(a) There should be a carefully pre-.
pared label showing the name, com
position, richness. etc, Of the speci.
men; the name, character, location of
the ore or mineral deposit: the name
and address Of parties owning or opera.
ting the same; and q reference to the
page Of some published report where
this special deposit is described more
in detail;
(b). A small map (six to twelve in
ches wide or long, of the state OF
country on which the location of such
mineral deposit Is indicated;
(c) Sections or charts showing the
nature. extent and geological relations
Of the ore or mineral deposits Of the re