Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1899-10-28

November This Do referred Co. as fol-
lows. iy a.. Is. Gilbert. in his mono
graph on Lake Bonnovillei
ANNUAL VARIATION
The cause Of this annual variation ls
nt once apparent. The chief nccoHsi0nH
10 water 10 the lake arv from the melt-
inE ~ anow on the mountains, and this
occurs 10 the spring. ucrnHIHuluF the
Tive % The water from March Co June.
Water cscapra from the lake only by
evaporation, ana evaporation la most
rapid Ia the summer. Before the influx
from melting snow has ceased 10 o.
antaEonizcd by the rapidly Increasing
evaporation. and "a soon Az 10 eeAaes
the surface r. quickly iowcr-lffTf<,v
autumn the tate 0f evaporation rrfdu-
ally dimlnlrhoa. ln November % barely
equals the tribute OF the rprnH-fcd
stfoane. and in winter 10 IL uycrpowofcd
by such aqueous product Of mountain
riorms oa n not stored up To- snow
banks.
There D. sull another variation nf-
t'cting the lake level locally. although
~ average Lowell u not disturbed
Under the influence OF strong winds the
water o. rolled up on the shelving lee
shores To % height of royerni feet above
the normal water line. while on tho OPP.
p0tito OF wiudWard shorcr there b. a
WV N'''NNNNNNN w. NNN'"|I NNIH NaNNM MNNM
gentle Winds, not exceeding or = miles
per hour ln vvlOcltH the writer has
known the water To rise an Inch or two
on thr fats forming the eastern shore
NJ the lake between the dcltuH OF the
Hear aud Weber rivers
Each OF these variations ln the inlge's
Lowell h1" uu Important Indirect Bearing
on the subject " the present luveatlgn-
tiun, the first two affecting the rlIinitv
OF The lake both generally and locally.
while the tfird has purely local oncct.
" u evident that aH the Wutor rla..
durinU either an annual or "a uoupgri-
nulcal elevation, the general density of
INC lake water must decrease. Tor the
Increased volume Do due To enc addition
~ itrsh water, ana the total quantity
81 Vlit ln the lake remains practically.
though not absolutely tho same. Dur.
INK q period % subsistence tho contrary
IA true although some ~ the saline
matter IL lcft by desicontlon upon the
shores from which tho water has reced
90, part % this being gradually re-.
turned to the lake by lotchiug and part
Of being covered and entrapped In the
coil
The density Of the lake varies IN its
different plrtr. being lowest close 10
the mouths OF the rivers and highest
near dry shelving shores IN the latter
case tho density IN ralscl bv ovaplrn.
ton ln the shallow water untu ID come
times reaches the Haturltiou point ana
the salt ~ cryHtnllzol out and prpcIpl-
lated on the bottom Tho procsss Il
tlded, of course, hy the fact that the
Like has no upprociablc cemldlurnal
tides. which would tend 20 produce "A
more cguuhlo distribution of rs saline |
contents. The circulation. however. In
tho deeper waters removed from tho
river mouths ia probably sufficient TO
make the density uniform over large !
areas
AT THE RIVERS MOUTHS.
Near the mouths OF the rivers the |
density 10 largely conditioned by Inc /
volume 81 fresh water brought down by /
the rtrclm. when the discharge h ]
heavy the denfo water OF the lake la |
pushed back and tho gone at which tho /
mlnEllng 81 the fresh and salt waters |
occurs is farther from shore than when 1
the discharge it light % the rivers |
maintained an approximately oven How |
during the year this fact could not mae /
terially Affect the feasibility OF intro /
duclng marine animals. such as tho /
oyster for the zouo ~ admiXturc would /
remain. other things being constant. at |
approximately the same position. II /
happcna. however that the rivers die l
charging Into Great salt Lake pnss .
through annual oscillations OF great I
magnitude, the maximum aad minimum |
Cow of Bear River in 1891. according 10 |
the lguroa published by Professor For.
tier ana previously quoted. being about /
% 90 2, and Of Weber River Zoe the pru-
portion NJ about "a 10 ]. Data Tor the
Jordan river are not available. 10 Will ]
be- seen, therefore, that the fluctuations
ln the position 81 whSi we may Gail /
the neutral zone. iu which the water
has a density 0f between i.Oi and i.O2.
must Dee very great Again. during non.
periodic etugcs ~ hiRh water-la. flr
Instance that eliminating in lSG9-the
salt water eucruaches on the frcfh and
some OF the former fresh-wutcr cham
nels 81 the rivers become converted In
20 more or less saline eatunrios.
The annual oscillations would proha-
hly AFFECT the local density Ia u smaller
degree, partly because the influence OF