, 1861-03-30


Ists5 :, :3 The Lake Survey,
4 r. r. j IS: Wfon tha Dstratt Free Press.1
i=:4 hid, ,in Moitn1a thfnnFh f,ant' Me,da,.
y report OF, the Ieke EMaTey p{< 1850 aoms mat
II work, which aFed 3AAtsxsstt, TO ofherab1ics The
-sa9og aad anpenee Hh1eh haye pF years been
:; tnFolyed tn this work argl well. kMoNn to ouz
eeas ees ,sea eIsa df Z ss ss &C.
EW Interested q III ttat nlta md MI heasFe thas
: nnn0te acceptable INFO 'lcan b6 con.
+ Teyea thu public mind Eknn sueh ~ ID am.
i ho!asd iEe hfle ts,'ts.a ot
4ss5s & &. ssast S91se 6 &
Us It has progressed. By this We find that
complete surveys have been made OF Lake
Er1esl f3t.{ feagfngw
Bay, Detroit River, the Straits Of Mackinaw,
snd. sad b sE sss stee e. M9R'sS@ aa@sg5
q ha5boEa aItnated On the whole range Of the
ter line ta thoroughly reduced by. the System
i ofchafts, and nav3g 3gstozs hare every advantage
i that Tiny an aak. .?4The. .ehar4sdare Issued to
a1l II. Tesaala navigating the Wateu
ed principally upon Iake Hurop and the
\ northern por6on Of Lake Mlchig ga1;, eomtietl
Ing the enttre survey Of the: as tar;sonsh
az Point aHx Bets aeeis, On the western shore
The surrey on Lake Huron was made, to H.
corporate the Canadlan and other SURVEYS bY
. system Of astronomical ohsergations Ef1efh
transferred the Longitude Of, Detroit tot God
ertehs, On the Canddian coast, and from thence,
]$by way af5 tbs t3tofRian Bay, to the Macki-
-naw surrey, thus eompassi1g both coasts OF
| the: lake and testing the accuracy Of the
'naw with the 0bsef eatfons which lad been
protested along the eastern shore. The result
+ Ras indicative Of great accuracy IN the work.
ibis department was nnder the charge Of
+ Lieut.. Q. N. Poe and assistant Jas. Carr. The
hydrography was completed by the steamer
Search, under the: command Of Lieut.. N. P.
smith, who affected a seriee :of soundings by
eastand WesElinss, ten miles apart, Which e.
tended from GakeEt Clair to 81, MarTe Riyer:
Ihis te2a1ainahnm developed some extensive
s1oais IN the nelghhorhood of, Thunder Bay
Wa1eh 13,t. never hayeshee1 located before.
ed BY three shore-line parties, which took
EoundinEso and :tracede etha:coasts and by The
steamer Surveyor, which was detailed Tor deep
s0undings. The shore parties Were under, the
charge ofiAsaistahts " ". j II. Harding, a. G.
aided ~ : compe3snt foree of civil Ienginee1s.:
: They delineated 50 So miles Of shore, embracing
1888 square miles Of soundtngs and l30 square
miles Of shorn topograPhy. Captain Meade
speaks in the highest ter1nB Of the energy and
faithfulness- of The gentlemen who l1ad this
branch Of the survey under their charge. The
Surveyor, under the coInmapd Of Nj, ]. a.
Potter, perfected q system Of deep aoundiugs.
embracing the ahpYe line Of survey, and the
Manltan Islands; - well as Little and Grand
Traverse Bays. M1 Potter is an: engineer Of
ion9 standing n The sarviee, familiar with all
The report pays*a high :'complimeut TO his
efficiency. II addition to this force there were
Two triangulatfon parties On the survey, under
the commend Of sLfeut. J. 1. z. Smith aud
Assistant Jas. Carr, They effected the com
mencement' of asystem Of trIang ngu1ation which
is to- embrace the whole lake as 3 basis for The
transfer Of the survey to charts
a party to whom, was assigned the duty Of
making magnetic observations was: eueaged
during fheasason on both lakes, under the d.
rect1on Of Lieut.. WiP. Smith. i An important
system of water level and meteorological OBJ.
tory results They are, yetin an Imperfect
state, but Captain Meade has been enabled to
deduce conclusions which he sums up as fol-
lows:
= Fiystzy- That tie lakes are sensibly and ran
IDLY affected by winds and storms, depressing tie
water on the side. from whence the wind blows.
- Secondly That Independent Of the wind lde-
tAAtAV41. A16 1akt8 AIH RUQJEEEeU TO chances nf |
level due to the relative proportions Of theif sun
ply and discharges; the supply arising from rains
and d rainage Of the watersheds, the discharges
arising from evaporation and the flow through thsir
.. ".zzIyy- Is general ln,e these last f1uc~
fSaaons 3na1 occnr annually; there being q high and
latter ID winter and that within small % Iiuits M Of
t1me These annual changes are very nearly simu.
:" Fourshly- these annual fluctuations both
LQ6 Q1Gn ana low EtHEtH.- IN HauYao
to year they being the effects Of variable causes;
and that tha extreme range as yet reported be-
to s. feet "a ether words, the above phenomena
siye reservoirs. which receive aud absorb the fresh
occurrence, the prdilsry iuctuatt0ns.'
The plans, for the coming season contem.
plate concentration Of the for e on the upuer
end Of Lake Michigan. An appropriation Of |,
9I25,000 has been granted for ,tha expenses of
The Survey, which, II is to be hoped, the con
dltlon of government finances will not inter-
purchase Or construction Of another steamer.
at an expense Of s25;b00. or the survey itse5f
he speaks in the following terms:
" As to the great importance Of the survey, It
oratlons or interested In its results hat Il seems
almost useless to alluae to it. With coast enmai
n length to that Of the Atlantic and Gulf Of Mex
N.Y. VITA GC4tAAAAoAAp o4Aa4 ~ WRSlR f0re1Pn
commerce q the country. oanting to nearly half
million Of tons Of shipping, ,sw1th tie whole nayi
CATION one of danger, and throughout the greatsr
part embarrassed BY reefB, shoals ana other m
1t would eeem as Ii. all clasEes Of Ia
navigator, the underwriter. fhe
merchant, the travaleY, whether for husiness ~ i
pleosure-were al interested In the prnsecntfon "
be survey, and directly interested by ita rssnIts
The government itself, through tts bureaus al
lighthouses, forhfcahons river and harbor i'm |
9zoyements. &c, is directly interested and be1.e-
tied. In view, therefore, of the vast importanca |
II the WORK, and OF the 1ndoubted fact that fhe !
more liberal the appropriations, the earlier It; viii
70 completed, conclude this report with r, Aeti-
nate will be granted In ful1." ~e'-
There yet remain the whole of Like sunar;.
II and the major portion of Lake Michipan
o be surveyed The work will bs pnrsned
With the same energy which has charaeterized f.
TINS far, and nothin 6 except failure on 4
he part Of tbs government to ;supnIv tbe
means will Interfere with It until the whole I
xtent Of our inland seas is known and record,
d for the benefit Of their vast commerce ana il
heir enterpr1sing navigators. It Is a work Of 8
he first Importance to the Northwest and
. such should be cherished and fostered hv 1
hose who are to enjoy its benefits.
Military Movements In the South. t
toorespond ndence Of the New York Trfbune.1 a
SAyANEAH, March a 1851.
Yesterday another batch Of recruits- from I q
arious points along the Central Roiiroad, ar: a
wed here by the night train, in charge of an y