The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1878-07-28

they should be CO asaal scrutinIsdso
am !. the terrier q ne .sle.eeps
IRON the tube or from the lenses
PROFESSOR PARKHURsT's REN AaKs OK THE
TOTAL ECLIPSE OF THE SUN ao-McRRow
To THE EDITOR OF THE HERALD
Two or three weeks ago gent ,eman In ponnsyi.
vans, observing the planet Jupits through his,.,
scope, upon its disk round spot which m a..
across II IN little over thro' hours Itw..h
shadow ofJupiter third and 10 rgest satellite ,rb,.h
was then passing between Jups Ter and tho SIN To
morrow afternoon. At half-ps 81 three o'cI. ek ~
York lime, an observer W. IN the plan Al Ysnus a,
Mercury OBSERVE g the ear h through Lis ,e,s.co,
would see similar but nv oh smaller spot enter...
upon the disk In Central As and ing II for n..
three hours, he would sac It pass through sibv y
Alaska, across the United States and tho g. ria
Mexico hnaiiy disApr caring at tho opposite alt OF
the disk IN tho cariS Dean Sea- THIS Is the a. dge Of
our moon, which sAl then pass betwesn ,h .adow of
the sun within that shadow, which y Garth and
10 miles In dame er, tho sun will be 20 III DO about
TO see that echp Q astronomers hv ally ecaipsed.
past few weeks &C agrcgating along :" been Tor the
shadow, and 1T sing up their " the path OF tho
scopes, photogr aphic appara,w 'escopes spectre.
nomicsi applian &c by which yb ana every astro
Two or three psinuses OF tho ey can hope, in the
knowledge. darkness, to gain nov
The questierE naturally
a shadow wfry cauy 'Ns'' |" mo eclipse Is o,y
simply goinr on the sb Of reach the same result n,
Ing Tho d;,,,n,. ady SIDE OF q house and v,.
chimney Tns Az 70 OF tho sun bebipd som. ,u
although Tie $, +rence this In the latsr ca.
70. they SIR, srays do not directly fsM UPON n.
from ,on obiss,s all about us and ~. 49,
apse,o"s s. TO another aud from N. .sne''.,
on all tne oewhes the moon intervene. ~ ~ an
but OWL A, tse rh from rsso p. %Hs q u.s. We not
light ref zoe curvature ~af,h sur,sc @
u.s. AN hd traverse the thin staiSsphese or
earth surisoc o. IL would DO reflected back to Inc
tns brighter STARS appear in Tho darsse.s
~ sundea Nv III, 0rus creation, nnding themselves
IN: d., .es oeiore there the br,aStnss" :, oa.
no. sa .,ms az .ht greater
even to ~. 10. rvod oy Tho unwonted phenom.non ,,
Scx y, wb ans astronomer. VINO knows Deorssao "'
awe u, to occur Il scene OF
!. rnn.a n.s ow oi the satellite of Jur,.r .,,..
hs - =. even At the edge OF Inc a,st az
moon eve w p. an ineror planet ihs snaoow Of GU,
m Isave, when II enters upou the .arin ana xh
tines. po,o. would apnsar rouud But in lac. !, !.
rouna passes a's ~. elp,s becoming gradually
The eSsSma.in lka middle OF tn" ec upU"
s"s.Sso STRIKES lns ear.Ss surface ob,.a. IN;
same 49, out 4 that surface is viewed from the
is the rss ii. an apparently rouna snaSow.
hold, 70 experiment upon this on small scale By
- 10 sa-. shadow upon much larger slooe :. sa
.rasgs or football when II VIII be found that al.
Sssogn ofser 20 Ds Is EXTENDED yet II the eyo
wh he'ry o IN sun 1s s0a %0' soo"
ball, the same shadow will appear circul.r
earl disk In less than three nours 'n ~
hai.past three o'clock. When your teIegraphic re.
ports come In from the various points in the ws..
where the eclipse win bs observed, and show that
the eclipse actually occurred at abou, noon in
some places aud all through tho In Others
90 not hastily conclude that you have csught mo
about as nSas CT ns s ECLIPSE WIN
local sine, but there 10 sun difference hours
though their VIII .ay eleven osoe s.; ana a.
the sun will appear them meridian vet.
O'Clock in the ai.srsoon mere Or. to- Jake much u
bearer snd more interesting pon. Denver, IL Colo.
most Desirable point Tor Conservation me ,o,sny
, ,ns o.n'ss seips. WI occur a! nearly h:rAs,
tuds being two hours, ths Will correspond TO nearly
could have tssgraph,c despatch iron, Nsr,chnsx.
IN Russia In Asia, whero tho eclipse begins upon the
eclipse occurred Just sunrise before nve O'CLOCK
In the morning, although here It would be hall past
In this neishborhood the eclipse will be large
Tho d,mI na!on Of hight WIN De hardly psrccpubie.
quarter before i've, t,is to tho right Of lover
pssn 10 "a" enernaep from we moon ~ DO seen to
ter before six twothirds OF tue disk wit
toward the left, finally disappearing al haifp..t SIX
All mis- can be seen with bit OF smoked glass snd
though, oil course, they viii Il more Distinctly
The interest IN the eclipse is not mere, although II is
well worth seeing, Tor even q small oi The sun
IS q comparatively rare Phenomenon at any parucu-
lar locality but tho value and the Interest In thus
eclipse IS wnhin Tho line whore Will be en-.
tircy hiddcn.
1t Is almost useless for me to snumesste TO-DAY
what Us hoped 10 be done, when IL will 10
curing anv useiurfesuls, and IN few days we shall
know what has been DONE there are q few poin,s
Ut special interest which | may be excused Tor
mentioning Notwithstanding tho confirmation
gwen ny the recent transit OF Mercury 10
inc thcory Of matter revolving around the
sun sun within the orbit OF Mercury. the probabilities
the existence oil planet see small that
II - unlikely mat much attention will paid TO inc
search Tor such planet ms has been customary 10
recent ecupsos. Tho main interest will centre upon
the urther investigation OF the OF tho
envelope surrounding the SUM- which occasions those
gorgeous rays visible during total eclipse
Mr. j. Norman Lockyer. the Enrieh astronomer.
who has recently passed through city on mia
way 10 Denver well ssys:-"Y oung's work OF 1862
tue last total eclipse visible American soiD viii
TINS year, 90 FAR as the coronal atmosphere Is
concerned" And II rs gratifying to know that
the observer, Professor YOUNG. N now
10 have ~ MS command superior MEANS
Of observation, replacing the cumbersome bat.
tsries oil Prisms In the spectrvscope by tho
dinraction gratugs constructed by RUN.
effurd, or this city. and using insse grstiugs Tor
the hrst time IN photogrspbipg the lines in tue
solar spectrum IN total eclipse. We may hope to
pOtain valuable Information IRON tEs new meahs.
not only with regard To nstii uttou OF
The corona ana the promiucnccs, but thcir tempera.
ufe, upon which there doubt Aoduis
rot unlikely that the discovery oil Dr Draper of
'rignt lines vi oxygen Ia tho solar spectrum, may
eau 10 discoveries OF the deepest Importance
iirection We shall not soon again have another
ucb opportunity upon American soil for these IN.
resuRstons, ana from tho rcparatioDs winch bayo
cen made, ana from the pure SKIES OF Colorado.
nav reasonably conclude win Lsckye eclipse
4 next Monday ''will be observed as no ccupse has
yer been observed before. -
HENRY NJ PARKHuRsr
NEW YoRk, July ~ 1873