Evening capital. (Annapolis, Md.) 1884-1910, 1901-05-10
MARYLAND EXHIBIT.
BIG SHOWING MADE By GEOLOGICAL
SURVEY AT BUFFALO.
An AIlegOrioal Picture Of The Genius Of
Geology Occupies The Mines Build
ing at The Pan-American
Exposition.

Exposition.
The MARYLAND Geological Survey, in
its exhibit at the Pan-American EXPOSE
ton at the Mines Building. is making
good showing OF the resources of the
State. An allegorical picture represent
ing the genius Of geology uncovering the
mineral wealth of Maryland occupies the
upper part OF the east front OF the build
ing. Below this are hung large maps of
the State, colored in various ways to
represent geology, rainfall and tempera-
lures. photographic provinces, relative
elevations and drainage areas.
In the large windows are exhibited
large colored transparencies OF Mary land
scenery and stone quarries and series
of photo autographs OF sections OF rock
colored, as seen under the microscope by
polarized light magnihed 90 diameters.
Nineteen frames OF illustrations from pub
locations. topographic and geological
maps, scenes of quarries and coal mines
cover the remainder OF the wall space.
One of the most striking objects is pillar
of coal three feet square and seven feet
high, weighing about three tons. This
cost the Consolidation Coal Company an
immense amount OF care and labor 70
cut from the breast OF the "big vein, :
which is IL feet thick, send it to the sur
face and ship it to Buffalo in one perfect
piece. Seven smaller cubes represent
others of Maryland famous coal seams.
The exhibits on the tables are mostly
OF economic value. At one end are
shown the building stones from the prin-
cipal Maryland quarries. blocks of vari-
Gus shapes represent the polished, ham
mered and rock surfaces of Port Deposit.
Cuilford, Woodstock, Ellicott City and
Jones falls GRANTEES. Marbles from the
Beaver Dam quarries and the famous
Seneca red sandstone and Shenandoah
limestone are shown. This is backed by
the exhibits of the Maryland slate COM
panies-rough block and dressed slabs,
modern, neatly trimmed aoohng states
and states which have served on roofs
for over a hundred years. The orna-
mental stones are represented by col
lection of polished slabs OF variegated
marble, Potomac conglomerate and
beautiful series of serpentines, including
the precious variety and picrolite. Next
comes less ornamental but very practi-
cal exhibit of the highway division OF the
survey, showing various tests by speoi-
men and photographs OF machinery TO
which stone, brick and cement are SUBJ
jected to at the laboratory in the Johns
Hopkins University.
The soils are well shown in a series of
glass jars and tubes. Seven tubes are
arranged around each soil specimen. each
tube containing its proper proportion OF
the constituents of the soil. Clays, label
ed with their localities and properties;
building and molding sands, kaolins,.
ground flints and marls are shown in
glass Jars. Under the table, on a series
of steps and lighted by electricity, are
the clay products-enamel brick, fire
brick. ornamental and common brick,
sewer pipe, stove lining, crockerY, tiles
and terra cotta-some glazed, some un-
glazed, of all shades from bright red to
white. These make a very attractive
display and we'll represent the great rich
ness and variety of Maryland's claYs.
Installed in four plate-glass cases is a
very complete systematic geological col
lection. The oldest known rocks are
represented by contorted, faulted and
metamorphosed rock specimens, with
ores OF copper. iron lead and gold. Each
age is represented by its characteristic
fossils, from the Cambrian trilobites TO
the elephants tooth of the Pleistocene,
with such minerals and ores as occur
placed in their proper horizons. A COM
plete set of the publications OF the Geo.
logical Survey, consisting of reports and
atlas sheets. completes the display in
doors. Outside the bulldogs are larger
pieces of terra Gotta and slate.