The sun. [volume] (New York [N.Y.]) 1833-1916, 1894-04-29

survey. The surveying parties must be con-
stantly on the watch. must seize with avid
est rspldity and accuracy when the chance Of
iess, In nc other way can progress be made.
4. hs g" T. IN 5h sy s. Tsr ss ss
1887; and yet. on that coast. some Of the best
men In the survey. anxious as they are to
showing Of trianGulatiop and Topography, for
the season. on account OF smoke or foRs that
make the shore line Invisible for weeks at .
Along tho southeast Alaskan cosst the sur.
vey e going on under greater difficulties aud
at still greater cost. The shore line here. COW
cred with dsnae forest and brush is generals
imraseaGle. The interior can be reached only
from the, sea. Sucerintendent Mendenhal u
will soon have another party OF aurveyors in
this Held, building monuments at points they
are able to resch in the interior that are Just
ten marine leagues distant from the const.
linz Setween 1Ss srti.h De %os on h n1 opy
territory In the rast few years. also, we have
eeen these surveyors pushing lar Ut tho lukon
Ocean. nstronomIcally locating the northern
part of the boundary at a sufficient number Of
points 20 serve all purposes.
The deep sea eoundinRs that have been eX-
tensiyely made By the steamers OF the Coast
str."% partSnsy II and around the CYL
the results OIL two important volumes,
=, A clear distinction should be drawn between
survey and the surveys OF the Geologicai Sur.
vey from which the great topographic map s
geological survey. The methods required for
THIS Topographic mar nre not 80 refined and
sTaSt as shose demanded ny geSSdstie SURVEY
mans are made. hut these mhpe do not fulnl
the numerous purposes for which all civilized
nations are finding II necessary to carry out
the mort exact Reodetic surveys. We need the
geological map. for unit! we have 1t. the deil-
mite knowledge desired Of the nature and geo.
graphical position OF our resources will not be
accessible; and the Topographic map upon
which the geological survey viii be based
bACauRA
Afford to wait to base the geological investiga-
ton upon the Reodetic surveys which will re-
reason why the less costly topogrn phic surveys
are being pushed on in advance.
Of our domain is Coming and there Is n" e asen
cy in this country that can carry 1t out 80 well
as the bureau to WHICH our geodetic survey
msnd that the work be LETT in the hands which
We may. therefore expect that the Coast and
Seodet a survey ~. VIII Pc lett phnhe@hPesed to
known Its Astronomical Observations, BY
which the direction Of all measured lines
gitude Of all important points are determined;
ita dwellings. showing the heights Of objects
the mean level II the sea from which heisRts
mining the density Of the earth; its topos;
the surface features OF our land; It's, by.
drography. Ievealing the conGguration Of the
and rivers. and it's magnetic observations.
from which We learn OF the changes in the d.
rection OF the compass needle While this
great work 10 In progress new editions OF the
charts will keep the seafarer who bears our
commerce posted as to AL the changes in the
bors and their approaches; and when the
eeodetic survey Is completed no part OF the
poss s the bss
value than the United States OF America