The record-union., 1892-12-10

sought for by experienced travellers, tour
lists and commercial agents.
Seventh-Educational Such maps have
nigh educational value and may prop
erly be regarded as worthy of the outlay
from this point of view alone.
Military: They are a prime
necessity IN military operations.
WHAT THE COMMITTEE HAS DONE.
In order to secure such a map num-
Der OF gentlemen have actively interested
| themselves. Committees representing the
University of California, the Leland
Stanford Jr. University, the Academy OF
sciences, the Technical Society, the Sci
ence Association of the University OF Cali
norma, have been organized and have
held several meetings, as a joint commit
Tee, 10 advance the general project OF In
augurating a topographic survey. 1t is
under the auspices of this joint commit
tee that the present circular is issued by
the undersigned. The work Of the joint
committee up to date has comprised:
l. A thorough canvass of what has been
done IN Eastern States in this connection.
/ Z. a careful examination of the especial
needs of California.
.. A correspondence with the Federal
authorities at Washington in charge Of
topographic and geodetic work.
4. a personal conference with Major j.
/ W. Powell, Director of the United States
/ Geological Survey, as to the possibilities
/ OF cooperation of that bureau with the
State authorities in the construction of
/ the proposed map.
| .. Inc unanimous agreement by the
Joint committee and the acceptance by
Director Powell of the following as the
SPECIFICATIONS OF THE PROPOSED MAP
And Of the method of its construction:
F1rst-That it be a complete contour
topographic map, constructed by plane
table survey based upon triangulation
and ieveling, showing. in addition to the
natural features, the location of all town.
/ ship and land-grant corners wherever
monuments OF the same are in existence;
all railways, canals and public distribut-
( ing bitches; all public roads and roads
| which are virtually public by being in
| unrestricted use; all county boundary
/ lines; all cities towns, villages, hamletS,
1 mines and important places, together
/ with dwellings and public buildings
which are outside OF town limits, in such
a way as to render the map practically
useful; within every township at least
one permanent bench-mark indicating
the precise altitude.
Second-That all contours be on a
scheme involving intervals Of five feet,
or multiples of five feet, according to the
slope of the ground, and that wherever
the slope is less than fifteen feet per mile
the contour interval be five feet, and be
determined by actual leveling of the con-
1 tour lines.
Third-That all navigable streams and
| important water courses be located from
actual surveys.
| Fourth-That salt-marsh land and
fresh water swamp land and overhowed
lands be distinguished by two distinct
conventions, and be located without
reference to the legal segregation lines.
Fitth-That the field scale of the map
NFfl lNerus -.f..
to the mile, and that there be at least
three trIangulation points for each plane
table sheet.
Sixth-That the publication scale be
1-62-500.
Seventh-That the size of the atlas sheets
be determined by the even Is lines of
latitude and longitude.
| Eighth-rhat the United States Coast
and Geodetic Survey be requested to
furnish as many triangulation points as
| possible for the proposed survey.
Ninth-That headquarters for the sur
vey work shall be in California.
Tenth-That the work shall be carried
| on by the United States Geological Sur
| vey, under the supervision Of a commits
sion Of five persons representing the
State of California, Of which persons four
shall be appointed by the Governor ofthe
State, one to be a representative of the
agricultural interests of the State, one
/ representative oil the mining interests,
one on the nomination of the State Uni
versity, and one on the nomination OF the
Leland Stanford Jr. University; and Of
which the fifth Commissioner shall be
chosen by the others so appointed.
Eleventh-That the expense of the sur
vey be equally divided between the State
and Federal authorities.
Twelfth-That the United States Geo
logical Survey engrave the Typographical
maps on copper, and that the State Of
California shall have the privilege of OBJ
tanning transfers or electrotypes of each
sheet for its own use.
THE ESTIMATED COST,
These specifications have been adopted
as a whole, and have been found to be
within the scope of the practice Of the
United States Geological Survey.
The joint committee has formally in
dorsed Major POwelPs acceptance Of the
proposition TO cO-coperate If the State of
California should desire to proceed with
the work. The area which it is proposed
to subject to survey has an extent of
about 10000 square miles, and the time
| necessary to complete the survey would
be ten years. The total cost would be
about $500, 900. OF this amount one-half
would have to be borne by the State Of
| California, which, spread over ten years.
would be S25, 600 annually.
The result would be map that it is
believed would be superior to any other
in the United States, and one Of which
California might justly be proud.