New-York tribune., 1874-07-04

e,,. solar,lo iRseAerehes, 1870 enters Into very
elaborate calculations prove that the rotation Oh .no
earth can have effect whatever upon tne "ihu'' o
Professor apparently tries to make mp for MS
q, many recent meteorological works by the most
weeping assertion.
Extract, p. 400. ,.
The true that no great cyclone mas anr UeeI
found nearer the equator than tho tniru phruhes y.
latitude appears TO be that the equatora ue' Is oo
Of calms. ,,
Yet the Professor has Just been trying to prove what
was already well known that 10 is not belt OF Gains,
but that the southeast trades blow across IT, ana ne
even quotes Damper TO prove that they po" as r
as the 18th parallel OF north latitude Inc hortn hn'
of the southeast trades is given by Horspurgn as
north latitude in August and o. l0 nortn lat1uue III
December, which are his extreme means ior lne year
Kerhaet gives 10 So north latitude in December and 81
IL in September which are likewise his extreme means
for the year Thus We perceive that the equator IL
within the permanent southeast trades ana the paraei
OF south latitude far within them But OF course the
Professor could not be expected to know anything
about this He has been engrossed Win the ldea Oh
the Injustice of the southeast winds crossing the
equator and thus invading what he concees 10 Dc tue
territory Of the northeast winds, that he has actuay
Imagined thai the belt of calms is concdent with the
| equator.
Rut what was the object OF the Professor In making
all these contradictory statements and IN generay III
suting all meteorologiss. living or deadf Merely 10
Obtain by the collision OF the northeast ana
trades very small atmospheric eddy TO serve as tne
intial impulse OF gyraon" in order TO the FORMATION
OF the cyclone this collision could havebeen got at
in much shorter way as Davy tee0rolOGie, S9o39 ana
Others get it, We know that the southeast trade wlhu
s not, as the Professor supposes continually encroach
ing upon northeast trade for in that case IL "ou
have blown 1t long ago over the North Poie INTO empty
space The two winds alternately advance ana fetire
before each other so that while in Summer the south
oha fho
| reverse takes place.
But is there really such total lack OF atmospheric
disturbance in the region Of cam along the equator
as Prof Maury wishes us TO beievef Dr. Reye tDt
Wubelstirme &c, p. 1897 quotes Reddngtoh as sa3lns
"At the Kngsmill group on the equator Voent ston'
which seem to be Of typhoonke character are expo
renced" Now typhoon is the most violent OF hurri
canes Thus the Professor has laboring to show
why thing cannot exist at the equator, which II seems
is actually found there Davy MeeOrOtogte, p $500 mas
section headed "TorDadoes OF the Zone OF Equatorial
Calms" He regards these tornadoes as being fredueh
and violent and considers that in them when they rse
10 unusual proportions we have the commencement OF
the cyclone. The Professor has allowed the WORD
Gains to impose upon him. Between the parallels o.
and 100 n lat the chief of the belt of calms, the
uroportion of cams in the North Atlantic, as calculated
by Bourgeois from st. Maurys charts, Is as 6s to Loo
C Reftadon &c." PIP. 96-7l observations Besides the
Professor hardly have forgotten the monsooh'
which during nalr tue year DlOW dCIorS tnc Oh""''
from the southeast and the other half from the north
west. -
Extract p. 393
Mr. Dove states that "cyciOnes owe their origin ta
the Intrusion OF the upper counter trade wlnd ho th
lower trade wind current" doves Law OF storms,
y. l64) ..,
The Professor then goes ON to state MS "ehtreN
original" theory as a substitute for Doves as already
quoted. The substance Of this "entirely original
theory Is the interference of the southeast trade wh
the northeast trade. Now in page 2GI OF Doves Law
of Storms" the page as that quoted 6y the FRO
| fessor Dove states: at not however, prepared tc
maintain that all West India hurricanes owe theli
origin to the intrusion of the upper counter trade vino
into the lower current for the mechanical PROOF of the
rotation which has been given holds true as 1t dd De
fore II we assume that portion OF the south cast trade
wind travels far over the equator into me northeri
hemisphere and gives rise to the cyclone"
Was possible for the Professor not to have seen t
paragraph or must we conclude that after having reaC
it he proceeded pen his entirely original" theory
The horns Of this dilemma somewhat sharpened by
the fact that both Bourgeois and Reye notice this pas
sage. JAS MAChlNIorh
CaD,bTid0e, Mass.