, 1903-03-17

showing the surface lea
lures about the hines, the buildings
and other aboveground equipment
These photographs should not be less
than eight by en- inches in size, and a
few Of the choicer ones should be en-
larged to several times this size II
practicable.
90. With the mineral exhibits Of
each state or country there should be
at least one large map. showing the
character, age an extent of the geolo-
gical formations Of the state or coun-
try. There should also be a large map
on which Is shown by symbols or
colors the distribution of all the valu-
able mineral and ore deposits. In addi-
ton, there should be a number Of
smaller-sized maps. on each OF which
shall be shown the distribution in the
state or country of one important min
eral. One such map will show the dis
tribution of the gold deposits; another,
iron deposits; another. coal; another
would show the distribution OF sur
face and artesian waters, water pow
ers, irrigation reservoir sites, etc.
There should also be a series of charts
or sections showing the nature, extent
and geological relations of the
important deposits of ores and other
minerals, and of the distribution Of
artesian waters.
az. The mineral exhibits of each
state or country should be accompanied
by relief models of that state or coun-
try, and also of it's more important min
ing regions and mines, in all cases
where the surface has been surveyed
with sufficient accuracy to render this
practicable. These models should
show, besides the general Topographic
features of the surface. the geological
formations, the more valuable ore and
other mineral deposits, the principal
streams, railroads, towns, etc.
(5). Each such exhibit Of a state
or country should contain a number of
large photographs. illustrating it's
scenery or topography, it's geological
operations, its mining camps, its ore
deposits, it's important m~etallurgical
plants. These photographs will make
in important part Of the exhibit, and
they can also be used for decorative
purposes. filling up the irregular
spaces about the exhibit. They will at
tract attention and convey information
in a way that no other part Of the ev-
hibit will. A few of the choicest of
these photographs might be enlarged
and reproduced on glass. These glass
pictures or transparencies a be color
ed or not, as desired, and may be hung
in the windows near the exhibit space.
or they can be Illuminated by diffused
artificial light.
co. With the exhibit from each state
or country there should be, for intelli-
gent distribution, an ample supply Of
printed information concerning the
states or country's Il includ-
ing (a) Illustrated and attractive
pamphlets, which might be distribut-
ed quite freely; (b) special reports on
special subjects, as, one on gold de-
posits, etc.-these to be given to spe-
cial persons who seek information con-
corning one or more of these subjects;
(c) somewhat larger reports describing
the general mineral resources, such as
reports of geological surveys-these
to be kept on hand for consultation
who will unquestionably use them to
good advantage.
Relief maps or models. geological
charts and photographs serve a most
useful purpose in helping the general
public, as well as the specialists. to
| gain an intelligent understanding of
the problems connected with the min
eral and ore deposits and their devel-
opment. It is desired that many of
these will accompany the exhibits of
mineral resources and mining indus
liSS " W llduc III liz hihco puiiuilS
by the different states and countries.
Many models of mines have been
prepared for use in courts of law and
have been subsequently stored away
in some place for s~afe-keeping. Infor-
nation concerning the existence Of
such models will be welcomed and ap-
preciated by the chief Of the depart
ment OF mines and metallurgy.
The literature Of quarrying, mining
and metallurgy is increasing so rapid
ly that mining engineers and associ-
ated experts are unable to familiarize
themselves with many Of the additions
thereto. Arrangements have therefore
been made for bringing together in
the mines building at the exposition a
library containing the recent import
ant publications relating to these sub
jects. For this purpose exhibits under
this group are invited from the differ
ent publishing houses and from the diff
ferent state and government geologi-
cal surveys, mining bureaus and COM
missions. These, like other exhibits.
will be open for examination and
award by the jury; and during the ex-
position they will be at all times acces-
sible to visiting biologists and mining
~ -fp11rn y,L~ nm 1ocf~n 20 oDpc,1t