New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1874-06-30

placed nearly at right angles with the line Of vision %
the othsr hand comet whose perihelion distance 10
very little greater, coming Just within the orbit Of
Venus moves In the direction with the EARTH and
nearly with the velocity reduced to the plane Of
the equator In consequence OF which the TAIL which 10
now nearly at right angles with tho line OF vision, wild
gradually towards US. still apparently pointing
nearly In the same direction. 1t will be INBRED
that Donats comet was curved like soldiers plume
but Coggs's Is and will remain nearly straight,
because the curvature will be directly from Us, and
therefore impercepiibe. Another striking difference
from the tails OF comets generally that 1t will he 80
foreshortened to be remarkably vide at the end.
On July 16, the tail will extend far beyond the pole
and develop q characteristic, tapcrng on rapidly
toward the end. Within four days after the
18TH the tail will have expanded in the neigh
borhoOd OF the pole fill large part OF the northern
heavens. Yet 1t will not be a conspicuous object, be-
cause IL will be to look rather like an I'm
mense cloud, or a miky.way. than what It really
is BY this tine shall have solved the question
whether tue tail Is hollow or has fadiaed suuc'ufe~
or what is ITS constitution.
or the way I'm which tnI5 will end, 1t Is not safe yet to
speak with dennenes for although II the tan were
straight, should be almost certainly near thc middle
Of it on July 30 yet rs Curvature VIII proV,oy uy !:
two three days. aud even uu the eafth mas passed
beyond its path. Taking the best value eau ilon tne
records OF previous comets shoua ede Of tba
comets tan aud Will assume ms 10 ne Tue et'e me
tants OF the Southern Hemisphere, who may ne lgno
rant OF the OF the luminosity OF the evening SKY,
will sre IL gradually rise and pass away, ana WIN be
amazed by the sudden apparatiJn VI comet OF extra
ordinary size and usual briiliancy, which VIA burst
uDon their vision unforeseen as the great comet OF M
The gradual dimin and final disappearance OF Tie
comet Will nearly the converse OF "hat We sh4I
have witnessed here that 10 needs DO description.
What will he the effect upon the earthf dare not
predic the effect upol the minds OF men, especially OF
tne Ignorant: bot do not anticipate any appieeaDie
physical effect further tDan possiDe el'ctrca pheuOl
ena like the aurora II VIII, Oi course, leave u por'
tiou of its atmos pnere when IL departs Dut probably
not enough to affect the barometer or 20 come within
by possibility one per effect OF scegtic Interest
ana curiosity II the eartu should not entirely escape
rae moon will also PROBABLY be involved anl II VIII also
retain a portion OF the cUmctary substance As the
amount Of the attn osphere upon the moon surface -
now 80 small H. lndec there IL any at all tha " Is u-
recopn Fable By the incest astronomiHdl scuby, per
nam. after the the comet We shall nhd that
the moon will have atmospheric greater
or less density which Viii materially moul.y Tue pho.
nomena Of OCCUPATIONS and solar cclIpses. wa All
that Venus is safety out OF tie way 50 mat Tue ua't
expedition Will not be InterieIed with ny tue IIe.t
comet Of 1874. n. II Lao ,o. a.
In GOuids Astronomical Journal, Prof. P!gce mas de-
yeoped means OF computing with great accuracy rom
ohseryed phenomena tie form OF the tail comet ~
tepd as soon as shall nave the necessary materials %
attempt TO determine with more exdcntss c losltIoh
and the cOmels till from the middle OF
Juy up to nal Disappearance IN thls helhispAeIr,
have therefore, rcfraIod rom giving ~ tbIs hitee
the exact details Oh tue results shown oy ny compute
tions. hEShi ~ AH"N"'''''-
Neuc- York, June 20, 1874.