New-York tribune., 1871-08-28

INDIANAPOLIS, Aug. GA paper read In Sec
tion A. yesterday afternoon, further illustrated the
unsatisfactory character Of results obtained by merely
reading papers This was by Mr. James d. Warner OF
Brooklyn, NY. on "Thc Perturbation of Forces II
Is difficult 10 give IN few words an exact notion oi
Mr. Warmers paper; but of its ideas was that Time
was an element in the change Of the character OF toce
and assisted in determining IT, Thus the impact oi ooo
in notion II little time expended IN chanSs
the direction Of that notion changed its character IN
stead and made Il heat He believed that the a'acuO
and repu,on OF atoms were not the plus and minus OF
The same force but two distinct forces having opposing
lines of direction. Having explained how continuous
MIGRATORY motion Of atoms was obtained uuoer MS VIZ
ory he gave an opinion 90 the changes IN hose Ni'"
fions which, he thought, brought about heat Asn' "
k,upd. and he considered that light made manifest
to the senses by change made by the eye III the pl
batlons Of force vibration Of atoms WheicO! iNO
is communicated to the nerves.
Now this was lust one of those where thorough
discussion OF a subject would have done much hooi,
Prof Eaton expressed the hope that something % Woou
he said about IT, as the ultimate constitution ol mIoI
and the forces that regulate are at the Dol'om ol All
scientific TRUTH and il is the business oil the ASSOCIATION
70 90 down as deep possible mo inc we" NH'Ie run
L. hidden But there was time for discussion PFoi
Wander Wcvdc viewed all the opinions advanced by MI
warner os being liable TO the welln0wn summary once
made bv n critic that what in them was true was not
new and what new was not true. mat the ques-
to whether motion should be resolved into heat in case
ti9e IL was equally true of the slow heating OF rail
way axle and the instantaneous flash when procctlc
struck an iron target Tie question was, did the impact
destroy cohesion i'm Of the striking bodies; SO,
motion became heat.
Utne plan upon which this ASSOCIATION is managed
could be materially altered there is way worth suc-
cestinc whereby the great Improvement Of thorough
discussion could be effected. Let all the papers TO be
considered and that read in the sections, be
sent month before the meeting Of the Association
bc printed and the hands Of every member at the
meeting Tlcn at the meeting cOnlne the members 10
discussion Of these papers and to given time on each
that may considered relatively tOits importance the
time for discussion to he fixed beforehand by com
mtee Blackboard expOSOrs could give their demon
stratons in popular lectures additionally. This would
secure an immense Influence and popularity Tor the
meetings crowd might be got together TO see series
Of fathletcs throw edscu but il would be considered
poor show II each threw his discus at separate
mark in different direction. But one OF them threw
down instead gage Of combat there would be no lack
of interest among the spectators when another ae-
cepted it.
In the admirable lecture of Prof T. sterry Hunt on the
'Iron Interests OF Indiana" delivered last night in the
Academy Of Music, he gave in addition to an extended
statement Of the quality Of the Goals Of this district
fun description Of the Bcssemer process OF mixing iron
demonstrating the suitability Of the block coal Of Indiana
for that process Most Of the facts concerning the Besse
ner method have laid before the readers Of TIE
TRIBUNE. and do not need repeatinC but some OF the
Incidental dliNCucS met Win IN luls country III 'uS
manufacture have not previously been detailed Prof
Hunt mentioned that there was but Ocality-Cum-
berand-n Britain that supplied iron ore suitable
for the Bessemer process and in this country that Cum
erland ore, upon which formerly paid duty OF SO
and recently OF ST. as well as the freight across the
Atlantic was until recently only available source Of
supply forthe Besomer furnace At Troy and at Har
Isburg great efforts made TO native ores from
Lake Chlmplain, New-Jersey, and Pennsylvania The
difficulty has been chiefly due TO the presence Of pho
yvhi al
Of substances at ordinary temperatures, strange
10 say, in the intense heat OF the Bessemcr
does not burn, and the product containing IS
"cod-shor" BY doctorns" the native ores, however
and 10y treating some those from Pennsylvania with
the best Of anthracite the manufacturers were
enabled 20 mix the imported Cumberland with from 80 to
4Oper cent OF native iron When, however, the manu-
facture was begun at Cleveland it was found that the
cost Of land carriage, added TO the ocean freight ana
duty the Cumberland ore, made it so exceedingly e1-
pcusiyc Lake Superior which IS compared win
our other ores free from phosphorus, mixed with char
coal rig-rou aud used with coal lhavng many Of the
prourr OF Indiana block coal but brought from Ma
louuc Penn could entirely substituted forthe foreign
ore 10 advantage Moreover the supply Of Cumberland
ore is rapi ly decreasing so that Great Britain will not
have enough for her furnaces in few years, ana
may perhaps have import iron ore for the Bessemer
process from this country The block coal Of Indiana has
been tried in the Bessemer process in Cleveland and
found to answer the purpose in every respect
Prof Hunt himself, audcther speakers who followed
him. urged pTOpriety Of establishing Bessemer fur
naces near the block coal mines which midway be-
tween the Lake Superior and those OF Missouri, the
latter probably being suitable for Bessemer steel manu-
facture He could not state exactly which Of the Mis-
sour ores vOald be found best adapted TO this il vas
matter Of great nicely to say beforehand the differ
ence in the suitability OF for that process was barely
within the chemists grasp, and could always be more
satisfactorily tested by actual experiment In the fur
nace Prof Hall urged accessory TO this end that
canal he constructed through Indiana, the
line of the coal district from Lake Michigan 10 tho
Ohio River Prof vanderiWeyde described his expert
ence and success in administering medicine TO the Cham
plain ores al the Troy furnaces they being sick with eX
cess Of phosphorus; but he thought that when the
Superior and the Missouri were married to Indiana
coal such healthy union would supersede the docored
ores Of Ncw-YOrk,
President Gray apologized for the absence Of pro-
erammes for the day, by the statement that the com
potor employed unfortunately too drunk 10 attend
70 his business Several Of the papers named in the pro
gramme were not read the following were:
n, Trre Musical information By s. D. Tillman.
on the Enharmonc Scale OF 81 Tones In the Octave,
and New Practical keyboard corIcsp0hdlhS WIN the
TSSy66[cu %ey6e MO'i''' NO'"'''H' --'' D - '-'','
steam Boiler Water and IncrustatiOn. BY Jos. G.
On Oblique Microscopic Examination, and New, Sim
pie Apparatus for the Same. BY T.. II. Wander Weyde
To Find General Formula for the Length OF Curves
OF Pursuit" By Joseph FiCklin.
An Application Of an Exponentlal Function. BY D. T.
on a New and More Perfect Fre-Test Of Illuminating
Petroleum without the Use OF the. By T. H. NaLdeI
Remarks on the Snow Line in the Mountains of Mon
Clouds aud storms ON tie Summit of Mount Washing
ton IN tue winter OF lelo1! By j. a. iiunungtG,n Oh
60 MINI By J. 4. Hll
Account Of a Dust-Storm in Clinton County, Indiana,
Dec. "A, 1870. BY Joseph Tngey
SECTION b.
Theory on the Nature OF the Difference in the Mental