New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1890-10-09

of warm moist air which initiates q storm Is
not intensified, as Espy; Ferrel and Others have
| believed, by the liberation Of latent heat in the
rain making process. Were he correct. then work
ing forecasters instead of studying temperature,
pressure and humidity only, day by day. would
look elsewhere, say to magnetic pertnrbatiOns.
for signs of coming atmospheric disturbance.
Professor Ferrcls reply was, perhaps, needless;
but il will have Z, effect Of calling the attention
of other scientists than Professor Ilazen TO q fact
which, possibly they may have OverloOkrd-that,
| exceedingly valuable as was ESpy's work, the
conventional theory does not now rest upon that
foundation, but upon the labOrs OF later phySl-
cists-Sir William Thomson, Peslin, Reye and
otlers-who modify and complete, but in the main
confirm. the essential part OF Espy's idea Pro-
| fcssor llazen has probably overlooked decara-
fion TO this effect in Hams essay OF 1874 10 which
he has recently had occasion 70 refer Again,
Cleveland Able who did practically all OF the
scientific work Of the United States Signal Service
when that Bureau first began weather observa-
tiois and predictions twenty years ago, who has
ever since been of its most valuable resources
and who is probably more familiar than any other
living American, except perhaps f"ri"' WIN
The meteorological labor, at modern INVESTIGATORS
in all lands. said only last year IN Government
report The general principle that thc '"hh'hS'-
lion Of moisture controls The formal on. growth
ond inter- al motion Of ordinary storms was eariy
evident to many students OF nature "a vel! as to
Espy and Fcrrel. and has been Independently
worked ont 10y John Eliot. Of the Meteorological
Office o; India. Able explains low Thomson,
Peslin and Rcyc derived their formular from nat
ural phenomena. Cooling with ascent. NJ rate
on which these authorities are virtually agreed
bninn os
question that condensation wonld r"Snit: for IN
his own meteorological Tables he adopts Gnyots
figures shrwing the diminishing amount OF vap"t
which saturated air can ho1 1i!i decreasing tcnl'
prrature
Tie special point OF interest in PROFESSOR
Fcrrcl's t,rr 20 Science" is that. while all These
autLoritic, here quoted find different rates oi
cooling with ascent for DRY ard saturated ar
Professor IIazcn woul nave the slne rae ia
10th cases Tie much slower i1'e OF COOLING III
moist air has been held 70 br due 10 the llDcra-
ton of latent heat by condensation as the cur
rent asccnds: and this liazrn thinks does no'
ocrnr. But in drnN ing this, hc attacks not EspS'
nor FcIrcl. but Rr2namlt. an authority "h"'"
Fcrr"l, Thomson. R"ye. Pesln, Ham ana o1n'rH
have all tr.sicl AID in whom llalcn hiHsei mas
some confidence apparently, judging from NJ
rsucctfil treatment of that DISTINGUISHED student
Of humidity Fo. other mrleor'lo-isfS thohSh
pr,bahly not for Professor ll-n. j. will reinforce
IN. argument for steam power" in storms 70 TO-
call the pLruo,ucnon Of fDrhn and chinook winns.
which Davis. IiarImcton. liam ard OILERS have
- ably di,clIs>rd I.rrrn. air is driven up one
side OF n untairl an come" down on the o'hc''
We're th. fall equal the lac. and did no chan2c
Of moisture occur .ncartimc the temperature
,v,,l1 ~. tie same az tic eastern base as AT me
western la,r Of :hc elevation. PAT IL al me
NJ, ur,nin cIc>, lc,vy condemnation OF Vap"r
j. nroIucrI then ,hc ar comes DOM much dr"r
and much hotter Than hcfur" II started: ho"r'
ccarlsc of the latent heat ST frt" " S''''iS P'o"-
ahlc that Professor iiazen has oVcreS'lAa'e' NV
,,cu,iicauce Of his iaiorrtor.' . mrl'hrhts.