New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1894-08-17

liz and 2la per cent down to a. OF r PER Of the
suhsst we find that in medicine SO IN a ane
matter of protection against loss by IRE and cure
two medicne also there is growing convct ion
that the proper tactic treats ra,ion that the ac-
portaht,, 10 chemist has been chiefly called into
play. . .s % axt,nguIshing
fire Dr. Norton recommended 'he $3.50 - those
uso Of carbon dioxide along lines similar |" ',oS
~ which automatic sprinklers have fouhd quo"
satisfactory applications lie saiu'
ADVANTAGES OF CARBON DloAiDf''
,rhs advantages Of carbon dloxde over water
in certain conditions manifest. IL Is h'' u'A"
cut 10 conceive of a system OF pphs' op ,'n
naturally at the level of the floor, through ",o'
either or Tnne OF the gas could be
directed into any apartment where """e
IN the many cases where the losses p Hsss Inv
do and would naturally far exceeu enS 5nvbf that
direct s ,ho invisihe inert harmless gas wouln
enormously limit the DESTRUCTION u
erty. -, s,or f,,I dis
In conclusion he speaker said atter iu'' US
,, Of methods Of preventing CONCLUSIONS
cuuce II only to add that existing strue.u r. ,hose
n a great extent be protec'e''' dIen1verv OF a.
- a. 'S7rocious minutes between the discovery
o., and The arrival OF aid by the generous xpppped
cation Of the slilcious composition 10 a. e"p'"N
%nSy what remains for the chemist to G6 in
mis- dc.d? Indirectly, he may accpnp ,ndy Of iI-
.''.9 tho fire risk First In the STUDY VI ''
,gSaennS Whatever tends to replace me use 90 90
pctro cum for domestic ightlng se p one substance
diminlsh the National fire BILL as ths ONE "
IS q most profile Of continuation e,-Iv an
81, moro * litte doubt but that the car ~ az
~ the era Of cheap Aluminium VII. afLeet
an Important revolution in the use OF sdJna a. dis
the light unchanEe ,s ex pern and internal
applications In this fed, American cheii'''' "a''
'a Thn bigh rank Of aluminium hydrate among pro
,ertIves AS shown by Lachtn, should eaa ~ 49,
tended research with regard TO us avdau' ce; anni
and
ati1n The utility Of magnesium borate so waImy
recommended by Patera and by flscner; is
r.G,'i,a'v est.h' ished hy comparative tests II ~
. loIy that combinations OF the borates ana
srates may also BE- found 20 Ie' oT hsobe tiny
& nr fairies are as6 worthy Of being carried
out. mao INV
ANOTHER REMEDY TO TRY
With regard to protection by impresna'on' IL i
doubtful. whether any better agency than ANN
nrosphate can be found. It would. however De
d,is,l.. t. study the economical production OF this
s,., f,r the purpose In question. Might IL ho' oe
possibc 10 obtain cheapness by using successive
baths Of ammonium, su.phate and soau'n'
T. ls .orge.y a.ong these lines that we may expect
10 see advance made in the province "hose survey
now complete. ,r,
In the nauer OF Professor Merriam upon lhe
Resistance Of Materials Under Impact he sali
that the increasing interest in impact tests III al
parts Of the world an evidence OF the sro"..s
appreciation Of the Importance OF tne so ;Jstifvns
W tS ,ronort3n"e OF impact and expressed the
10 oie ~ few ye,rs methods may be devised
by which fu Information regarding all the p hysl,
cgl qualities OF materials may be obtained by simple
tests OF their elastic and ultimate resiehce'
NEW OFFICERS ELECTED.
The Section Of Chemistry organized after the add
iournmcnt Of the association meeting with DE- l.
NJ Norton presiding The following officers were
elected: secretary. William McMurtre: councillor.
Alfred Springer: Sectional Committee. A {. Haze
Nv H. Seaman. Morris Loeb: General Nominating
committee Durani Woodman. II. w. Wiley j. A
Meys.
In section H. Physics the following officers were
elected: Member u the council. Professor W. La
con,e stephens: Sectional Committee, William A.
Anthony Samuel sheldon. Alexander Macfaranc;
Nominating Committee for the council FREDERICK
me section of Geology and Geography was called
to order by Vice-P President Samuel Calvin OF Iowa
me following committees were elected: sectional
committee. Professor samuel Calvin. OF Iowa Cl,y.
Professor charles y. Wa.cott, OF Washington; FRO
ies.or William II. Hobbs. Madison Wis; r. r.
~ Nniianat!ng Committee Professor J. F. Kemp.
u Coumha GoeSs; conmi'e y r. fI,cbcock. Han
over \. H.: Professor J. j. Stepf enson OF , Mew
York CITY; Professor EDWARD orton oi ;Iin ~
section H. on A.thropology. elected the following;
to the sectional committee, stewart tu'ii ~, W
g M cdmm,,cS. Mrs ~ + Stevenson: three
Fellows elected to the Committee on Nomination,
rs J. Mc,iee. Or T. Carul and F. ii. CUSHING,
The combined features Of public meeting ana
reception under the direction OF the l.tileS kecep
me Brook;yn Academy Of Music last evening to
listen To the annual address before the American
Association FOR the Advancement OF science: IL
was delivered by Dr. William Hardness. Of Wash
irgtou. the retiring president; Dr Dame. -, PIN
The members Of the council and the officers OF the
affiliated societies Acting Mayor Jackson "aHace
made a brief address OF welcome III Dehai' 81 we
city The subject Of Dr. Hardness address wa' the
Magnitude OF the Solar system .
Dr Hardness. after tracing the history or the
growth OF astronomical knowledge. said in part:
ADVANCES IN ASTRONOMY.
The prevailing opinion certainly is that great
advances have recently been made In astronomy,
and so they have In the fields OF spectral analysis
and in the measurements OF minute quantities OF
radiant heat. but the solution OF the vast ma
jority OF Astronomical problems depends upon the
exact measurement OF angles. and in that little or
no progress has been made. Bradley. with his
zenith sector a hundred and fifty years ago. and
Bcssel and Strive. with their circles and transit
instruments seventy years ago, made observa-
lions not scnsibiy inferior 10 those OF the present
day. and indeed. 1t would have been surprising II
they had not done SO. ON the whole, the star
places of to-day are little better than those OF
seventyhve years ago. but even yet there is great
room for Improvement. one OF the commonest APP
ton OF latitude but /, Is very doubtful II there Is
any point on the face of the earth whose latitude
Is known certainly within oue-tenth OF "A second.
The theory OF probability ana uniform expert
ence alike show that the limit OF accuracy attain
able with any instrument IS soon reached. and Yet
all know the fascina Ion which continually lures
Us our efforts 10 get better results OF the
familiar telescopes and circles which have const!-
tuted the standard equipment Of otservatories for
nearly "A century Possibly these instruments may
be capable OF indicating somewhat smaller quantities
than have hitherto succeeded In measuring with
them. but their limit cannot he far off. because
they already show the disturbing effects OF slight
inequalities OF temperature anu other uncontrol.abc
50 far these effects are accidental, they
eliminate themselves from every long series of OBJ
serya Ions, but there always remains a residuum
Of constant error perhaps quite unsupported which
gives Us no end of trouble do not think there Is
any eXaggeratiOn In saying that the tworthy OBJ
servations now on record FOR the determination OF
the numerous quantities which are functions of the
parallaX could not be duplicated by the most indus
trious astronomer working continuously for a thou
sand years How, then. can We suppose that the
result properly deducb.e from them be mate
Mn 4. -. u La lnAi IN nf Il