New-York tribune., 1884-12-26
DfSfyrEGRluoN or TUE oBELISK.

sUcCrMplNG To FRosr-uoW TIE AMERICAN
CLIMATE Drs1RoYs BUiLpiNG STONES.
Professor r. ogden DGrcmus his in his lab
oIutoy in the College Of tine city of New\ok several
little vials nearly Med with small PARTICLES of reddish
and white tinted stone The PARTICLES ate not more than
half the size of ped bu; they all evidently from the
slinc source
"Yon ask me-" said Dr Dorcmus. 20 n TiIBUVr re-
porter who hli been making impurities of him. whether
there any Iciccp'ibc elact ot the weather on the
Egyptian oDelisk IN Central Park The only reply nc'n
o mti Is 10 ask vou 10 examine thr PARTICLES o' Stone
r thc.c vnls Now here 81 larger rrce from the ohe-
k n vas Given me with -one othrr ARTICLES associated
with This famous nonuuirno hy tUnnninlc GOiiinsr
VIM brought thr ohrHsk to thc rniicd Stlus Non rin
that thr rlftiH o STONE r hr bottle mr che 'in
as ths Ai-,i rrrr"
l,,t vt.,r As tun r.t iNrs" snii nNrNrNi p"
io, iur p.t m tir nnpab. Noh r'n -' thn'r ~
.,, iu,s ,rl 4,tNpi Nr % hAnluh Ni tNH Nt-WuN's
tNpt Aea rtnirAiit ihnN- ifNm a. q sN'p r'NN W N'N
H-,ai.N nt tAH etNNU. tlN Vu NN,u',t ihHi nave
npntd papN0 iNa HNis asst hNti 'HN Wlh 'ha Nwe
ahon tha fr,-aaAta Wo'r 9,np'ul ithAa roNN" w''
tDr ol -ga,i ntor,si tu u. aai htto wAipA su',s o
catrfu oDso. atuua al lutrr,i, sci toss w'nha e'v'
since tha obollsk ha, hHon p.cui w pp.iilpa lold
Cmuiuplo,o Gurru-e az tho tiiue, u't aom' mo',ufo
snult bc tkrn to protect n tr"m ihn weather. nal ho
Wa, not son~ibY Impressed with tho hcoe'ilb and re-
marked that as IL hi Woood 1000 years, 1t ought u"
he able To weather i0pD years mnre. thuG, though,
that hc ha, since realized more completely tue Importance
Of what urged although no measures have yet been
taken by the authorities to check the dIsniegraon OF
the stone"
Have you made any calculations on the progress ot
this disinicsration"
"Oh. no. not in detail. You see. the shaft Is good
sized rock ard Of this decay has been going On for
more than "a thousand year, in the Egyptian climite from
| which We obtained H. Spme 0t ihe mcr0syphlcS are
much drIacel bat on one sac where tnoy ha,g ocen
| most perfect In the Egyptian climate the ohclsk
gnt "ans rte. ''. vnnlI LII. hr Icriie herman, IN
the year Lord 5-1 That Will MOI he the case II
II remains in this conntry without protection from the
weather DisntesIaIion, Oh account ol the severe Iro,s
| and extreme changes, is much more fdId. dOhhl
whether under the present conditions mhch Wouh Dc
let of these characters nvc hunirci years from now
The process Of dsntesrlion II q" course increasing IA
thaws aud sudden freezing these small PARTICLES lave
shown YOU forced on on the same principle 10y which
destructive tnan gun powder. NeNi spring aiier ihe
snow has lclt ground, have doubt mat yon ~lll
be able gather upa hnil pint ot such fragments -
arod the foot o tnc ohclsk; 30 thcy continue l"
fai On silently dnnna the summer. o, ,,.. ,r.,,.,
stone ~ oar climate n one Of my hobbies ioil
paper on the subject Al meeting " the American nslI
tute of Architects lu Albany u mnnh aga, IL caused
much interest among thc mcnbri., many 81 "hoh ~
formed mc maj tnr question OF protecting 'l"n' i'n ll
importance. There is dpnl ii huidnfs ih lhr Guy
are tMnlB ''u"nlhR' any one 'ln ~, ,n' "'lS ="
great lls uf cfihlihE brown stone ill The boys ~
class have gathered rnm The tOrgo huiln', oar At
mosphrfo Utpdh attack. hl Kinds ~ building material
You can hr indications ~ the WHITE Hii thht HpnFi
ont IKE tnrirr on the face of the bricks Wc hnfc Away
been knpwu ihr most lasting oi lui'dinR miloilha'
Nhcn II comes on, lOfu0n ~ the buch comes WIN
| It,"
How do You propose to remedy IT, or can The diEin
| ierrati1p be- checked in the case ~ the nbriHhi'
| Undoubtedly There are many WAYS pi mailing stone
water proof when II T. polished the pores are "o.'n
and decay prevented but the polish wears on ana ih'
method the expense of The object ptr-rfNci In
seed oil any OIL Will keep the pores corod Tor Tine
but the objection 10 n-coi oil IL that II 80 changes the
of the stone to destroy ~, heluy Ny andoic
pnanc. which you know r an oily substance ol mprc
recent discovery. Il s courltA. and does NOT change the
stone except Ia brighten M ana as ~ IL unaffected either
by acds akac~ OF the almost mere, ~ iecNifcmriY
lasting stone treated with this believe. becomes
thoroughly proof against the weather. In England
wncrc tncy have nuch less 10 fear from extreme changes
| than have I'm th- couniy much attention i- being
given "a tins subject ana the ~ pntahnc. II hu'
been t1cd with excellent effect on many bnldug- ia Sew
| York among which may mention the Mcchancs' Bank
tbat massive now building IN Wa-st. near William. II
| A. unnucstionaby subject which deserves the immc-
date attention ~ the Iroper auth0uc- with regard Ia
The ohesk which Is not FOR but Tor thou-and-
Secretary Barker Of the Park Board saya that ncfc arc
frcourn appcnons to the hoard by those Who wish Il
tnke measures Tor the protection o the ohcisk Many
persons have parent processes, ami one man proposed
enc ose The entire SHAFT IN case u glass Tho pari
commissioners have taken sicps toward adopting
| any Of these suggestions.
| A QUESTION or TASTE
| A. Z I a.