The San Francisco call., 1904-11-12

progress under the direction of state
Mineralogist Aubury. The work was
begun in Alameda County, where Mr..
Narramore was engaged in making
search for deposits of substances used
in building. 1t will now be continued
IN many counties. Heretofore some
thing has been done in this direction.
Large deposits of various substances
or the non-metallic sort have been de-
scribed and statistically estimated, but
there has been no general search over
the entire field for materials that may
be used in building.
The State Mineralogist believes that
many deposits Of great value may be
discovered. Not long ago the slate in
dustry of California was quite small.
The cement industry is of more recent
date, but fine record has been made.
1t has been discovered that in large
coal deposit in Alameda County. at
Iesla, there are everything clays that
make excellent bricks. Several coun-
ties produce marble. Ell Dorado County
can supply slate in almost unlimited
quantities. Folsom granite has name
all over the coast. Colusa County
Santa Barbara County and several
other counties have large deposits of
fine building stone.
TAKE A WIDE RANGE.
Cement was produced last year in
counties as far removed from one an
other as Solano, Los Angeles, San
Bernard1no and Napa. The output
of these four counties was 640,-
S6S barrels of the total value of
nearly $1,000,000, the exact figures be-
ing s9SS,727. Brick clays were produced
in Alameda, Butte, Contra Costa,
Fresno Humboldt in 90
Angeles, MADEIRA, Marin, Mendocino.
Orange, Riverside, Sacramento. San
Bernardino, San Diego, San Francisco.
San Luis Obispo, San Mateo, Santa
Barbara, Santa Clara, Shasta, Sonoma,
Tehama, Tulare and Ventura counties,
and the aggregate output of these
counties in this direction was worth
81, ,999, ,546 Pottery clay was produced
to the value of $99, ,907 in Amador, Los
Angeles, Placer and Riverside counties.
Glass sand is found in Los Angeles and
Monterey counties. The granite pro-
duct quarried in Fresno, MADEIRA, Ne
vada, Placer, Riverside, Sacramento,
San Diego, San Luis Obispo, Santa
Cruz, Solano, Trinity, Tulare and Tuo-
lumne counties made a total showing
of $6S7, $40 in 1903.
The lime output of California in 1903
was valued by the State Mineralogist
at s41s.2SO and the limestone that was
quarried was worth $163, ,9SS. Amador,
Inyo, Riverside, San Bernardino and
Tuolumne counties have an annual
output of marble amounting to 100000
in round figures. Sandstone is pro-
duced in Colusa, Los Angeles, San Luis
Obispo, Santa Barbara, Santa Clara,
Ventura and Yolo counties. The total
value of sandstone quarried last year
in the counties that have been men
toned was reported officially to be
S5S5,309. The slate output of a year
that was marketed brought $4,000. The
total for these few commodities alone
that have been mentioned in the fore
going for one year was $4,992,252 in
value.
FIELD ONLY SCRATCHED.
AS in the case with gold and other
minerals in California, the field has
hardly been titled. No one doubts
that from quartz ledges, placers,
dredge, drift, hydraulic and gravel
miles vast amount of treasure will
yet be produced in this State. There is
no reason to doubt that many materials
that are not considered of much mo-
ment at present, when the mining sta
tistics of year are compiled, will yet
figure very greatly in making up a
grand total for the mineral annual
showing of California after awhile. 1t
is a significant fact, and having it's
relation to the present systematic
search for building. materials, as indi
eating what good may be accomplish
ed, that since the time when gold was
discovered the principal mineral and
indeed the only one of large Importance
in California as a home product that
now there are known to be seventy
five mineral substances in the State.
Clays and their products were the
fourth In commercial value Of the min
eral products of California in 1903, the
leading three being gold, petroleum and
copper in the order mentioned When
all the information has been gathered
relative to building materials in Cali
fornia, the facts will be presented in a
bulletin, cne of quite long series of
International value that the State has
caused to be published through the
State Mining Bureau.
This being a time of careful invest
ment in mines by conservative capl-
talists, nothing can be of more value to
this State than to have it's varied min
ing resources carefully described and
set out with the approval of the Cali
fornia State MineralogiSt. Maps and
registers. are valuable in this connec-
ton as affording needed and reason
ably exact information about mineral
deposits, the condition of mines as re-
CARDS development, the values of out
puts by counties of various substances
and other facts that men of money
must first ascertain as conditions. pre-
cedent to sending into the State the
money that is needed for development
purposes.
Under the several State Mineralogists
that have been at the head of the State
Mining Bureau of California a large
photography relating to mines has been
created. A list of publications that are
now available at the State Mining Bu-
reau and that can be obtained at q
nominal price by mail has been recent
ly prepared.
COUNTRY RESOURCES.
From this it appears that county
maps and registers have been issued
by the State Mining Bureau for the
counties of Plumas, Sis6iyou, Lake
Trinity, Nevada, Placer, FL Dorado
1nyo, Shasta, San Bernardino, San
Diego, Sierra, Amador, Tuolumne,
Butte. Mariposa and Kern. Among the
miscellaneous topics that have been
treated in State publications for the in
formation of the public regarding the
mineral resources of this State are the