The sun., 1892-07-17

This. mingled with tue in rush oi colder air. as.
Of the sun. The vinratory motion, o. tn. at.
mcsnhers corresnon Is to the motion OF ,na
MwSs sea T@tT n" wsc
About twcnty-iive m iies ,southenst OF salton.
perhaps In tho world. can be- Witnessed. The
faSaa G and sRR"Si sRs s ss,ns nt ts.G Ssns %
NAM ma, I f9Is 4y M cnm
tHrc il entering this section. II is the most
tion, abounds. There Is nothing but sand.
sPSt' apo nad in huge drifts sand het m
win Winds "nsa sand That me beats att iS the i"cs
thicker than hail nnd sharper than needles;
nnardino range on the east. more Il the same
Kind from the San Jncintos on the west; be-
rSfs ne hs sG Mna 'ys n tSs
every direction. forming whirlwind here. m.
other and another there. piling the sand IN
soil into IA fat. har,i surface botween the drifts;
Not avery inyitn: place to pitch a camp nnd ~
get a glimpse OF the mirage OF nll IniraGes
ns ns FsS h ns er Ss
fl at observed. 1t iightens until 1t seems TO
into myriads Of shapes. it hscomes clearer and
rlcnrer. unit Mt last you see church steepies.
towers. arches nverhanging rrecipices. a cny,
air. air. As the sun risos tho shadows fade with
the first rays oi the luminnry they pys v, gone. n
Blake and his party n good many years ago.
tts s nt sstn ny food snss
tho iaciic I i;aiiroa1 br. J. G. Co per 81 the
Academy Q, Sciences In this city was on"nt ,ns ms
in the scientific department OF lhlo College.
te FaSt z yums 'nis ysty miles
distant from onae Cnrrzo GRE Creek nnI wncssnE the
strangely precpitous and pinnacle,l outline ot
thn maintains Heyond; i WIS It once 9nnarent .n.
ten saw tho peak of Signal Mountain. distorted
nmt @ ranges Sc Hn med to he Elevated above the
surface precisely MS headlanis Of acoast some
timss appear g rise above the water Mt sea:
are not due to ie:rhcton. but are believed to
he the result OF reelection from smooth sur
Tho beautiful surface 81 g pehhly plain
"i iEedectors; Tor each highly polished pehIShls peIh
sesn at : favorable angle. looks iike shee. 2, {
Mti m",inn ' Of tn" iy Stratum 1SnS Of heated air
The last clans" may be taken as an eSnlana-
tion OF the distorted mountain mirage whlcn
Mr.. Blake dcs .ri cd. but did not dissect.
has the effect Of eng!arsin-. distant objects.
bringing those beyond the focus Of the eyo
into clear vision. That kind OF air. taken In
connection with rays OF light, may assume
fantastical shapes and colors-
On tho MoHve desert and through the an
Joaquin Valley from Fresno to Bakersfield. u
mirage showing II depressed or oleynt.d ap-
p"arInce Of tho ground is common. 1t may 10
seen at most any place along the line on either
side o. the railroad. Tho distortion OF objects
ut this time is noticeable. You can see farm
Il uses plainly that nre usually not visible
streets o. n town that is IN the dim distance
are in plain sight. Everything comes TO you
ne II YOU were looking through field glass
and enlarged ns II under n microscorc.
The ground becomes very heated IN TINS
valley during the day. Itcools nfI considerably
during tho night. There is n vibratory motion
Of air caused by radiation when the sun ngaln
Now. in the evening in the San Joaquin tn
picture is turned. Instead OF depression you
notice an elevation of the ground. 1t goes np
from you instead OF going down. Otherwise
the picture Is about tho same; Ihe diiierence
is due to the condition OF the ground. The
surface is heating IN this morning and cooling
sometimes found in the sacramento Valley.
mirage answering this descri ption that Is
quit, persistent there. Is at point about torty
miles srIth Of Sacramento. looking east from
the Central Pacific railroad.
=, Last hut not lrnst Is one at Santa Barbara;
mission. looking toward the town. which seems
to be In the air Looking over the town and
out to sea. you will see well-trimmed vessels
moving like air ships far above your head. and
the cliffs Of the Santa Cruz Island. thirty miles
away. are from you II stones throw.