The Weston Democrat. [volume] (Weston, W. Va.) 1875-current, 1875-10-11
West Virginia Exhibition
AT THE
International Centennial.

cular from the State Board Of Commits.
siuners:
The principal objects Of the collec.
ton sought for by the State Board, are
in illustration Of:
1st, Minerals. Ores. Stone. Mining
Products compromising Precious Met
als. Iron, Copper. Lead, Zinc, An.ino-
ny, Tin, Bismuth, Lithographic Stone.
MILESTONE, Grinding Stone, Sand
Quartz, Building Stone, White, Black
and co'ored Marbles, Slate, Lime.
Stone. Cement and Hydraulic Cement,
both Burned and Crude Rock. Asphalt
and Asphaltic Limestone. Fire Clay,
Gypsum, Marls, Goals. Bituminous,
Cannel, Splius. Anthracite. Gas and
Coke Goals Coke; Iron 10 Pig. &C.
companied by samples Of the Ore, Flux,
and Coke or Coal used in smelling it,
and the slags and residue; Fire Clay,
and Bricks made from it. articles Of
Terra. Gotta and tho Clay; Mineral
Tar, Crude Petroleum, Refined Oils,
Salt and Saltwater, Bromide.
SELECTION OF SPECIMENS.
The above enumeration Of the prin-
cipal useful mineral products will give
general idea Of the nature Of the
specimens desired for the collection.
The principal objects of the collection
should also DO considered. The enum.
Grafton is not presented as complete, but
as suggestive. Any mineral product Of
utility, whether the deposits have been
worked or not, are important. and
should DO represented by specimens. &C.
eompauied by tho principal facts Of
general interest. stated in writing as
fully as possible.
In selecting the specimens, attention
should always be given to their repre-.
sentative characters. They should. as
nearly as possible. truthfully show the
nature Of the deposit or vein from which
they are taken, as respect richhess, nv
eragc gu1lities, structure. and the min
cralogical and geological association.
II the average characters or pcculiari-
ties Of mineral deposit or vein cannot
be shown by one specimen Of tho proper
size. several specimens should be taken
which shall, uuitedly, represent all the
important varieties and degrees ofrich-
ness Of the ore. The nature Of the rock
in which mineral deposits occur may be
shown by specimens of the walls. es-
pccially in the case Of veins or deposits
10 which the characters are more or less
dependent upon the nature Of the
inclosing rocks.
In all cases specimens should have
Glenn freshly broken surfaces as neatly
as possible across tho grain or structure
of tho mass, so as to show tho alienation
Of minerals aud structure oof the vein.
Specimens Of ores which arc solid
enough to permit Of being trimmed into
shape should be broken to one general
size and shape. but exceptions are always
to DO made Of specimens which would
DO injured by trimming. The size
should be ten inches square or our.
Where it is difficult to get pieces 81
large, two or more smaller specimens,
sufIicieu. to cover an equal space. may
be substituted. When ores arc friablc.
aud cannot DO obtained in solid masses,
enough of the broken ore should DO
sent to cover space equal to specimen
Of tho standard size. When it is not
convenient to trim massive specimens
into shape before packing, they may be
sent entire, and can DO trimmed just
before they are arranged for exhibition
10 general, it is best to select masses
which have broad fat surfaces, aud are
not over two or three inches thick. The
edges eau then be broken of until tho
'pecimcu has the repaired dimensions.
Massive compact ores, like magnetic
md specular iron ores, and some copper
,rcs, can DO broken into approximately
ectangular blocks ouly n few inches
llick. with Cat surfaces. giving form
which eau be conveniently arranged in
uses or drawers.
For netallurgical products no fixed
ulo eau BIO given as to their form or
izc. They should. in general, DO MS
ompact as possible without sacrificing
by Of their value as illustrative exam.