New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1880-09-02
THE AMERICAN ASSOCIATION
4 SUCCESSFUL MEETING ENDED.

frBoM THE SPECIAL CORRESPONDENT OF TiU fRibuNh''
BosrON Sept. 1.-The la day OF The twenty
ninth meeting OF the American ASSocia ION was VI
somewhat less cien;ific interes than those when
came before. as many members were cohceI"'"
about leave-iaking an preparations Tor departure
The nr,oramme of papers was not as large as usual
ne seueral Of the sections hal adjourned. Inc io-
lowing statistics of is meeting have beeh n'"c
nubhc: Number of papers entered. 2sO; hninoer
of persons registered up to Tuesday evening Ausns
81 979 number of new members eitc'eu' oV''
number of fellows elected. As number at the CaW-
bridge dinner, SO.
The association m in general session TINS morn
ing al 1880 O'Clock, with very light atten'ance
of mcn,hers IL was auuoHnced that the fellows
who were nominate yesterday had al D0"u
elected. Dr. George EnGemann. OF st. Louis. was
elected vicepresiden of Section b, for the mer'i"g
of 1881. committee was appointed to repo"
stars OF s. cer ma cntude at the next meeting ior
standards As follows: Professor f. c. PlcKrning.
Professor Lewis Boss. s. W. Bnrnhan. IroieNSoTa
A. Hall. William Hardness f. ;. Holden, simon
Newcomb. c. H. +. Peters. Omond Stone and {. A.
Yonng.
The following were appointed a committee on
standard time, with the object of securing the us
trbution Of standard time throughout the country:
O. Stone I. z. Langley, f. c. Pickering }. Il. East
man. L. Boss L. Waldo, j. X. Rces, G. W. Hough
and III, = lFitcDeIt. Every "a INV N"'''''''
tee is an astro Aomer.
resolution presented by l. Stery mum
and adopted, expr ssins high appreciation OF Inc
services of the late d.. Charles 1. jackson as an
original investigator in American geology ana min
eralocy and as teacher of chemistry
Are,o,ution was passed urging the next noH'ha-
fling committee TO give favorable consideration to
the Invita- on to meet in Montreal in 1852.
After the general session meetings were he'd by
Sections and b and the sub-sectiOns of chemistry
and anthropoogy. Before Section b A. }. COOK
read a paper on 1.-TWO New Methods OF tlghhng
Injur us Insects
Before section 7. II. Dudley. of New-lork read
n paper on Transportation Expenses and their
Reductoa.v An abstract is here gwen of his paper:
An oua,ysis Of te total aonual expense INTO rs Nan
ous items shows that they are formed OF Two distinct
arr Jude, lent OF the vonme OF business, sucn ~
q. 80 v,onse of o-earz .on 10 do prospective
amount of transportation. salaries. interest ON uonCs,
taxes rents and natural decay oi ulan these te,i .s
reTmentnt operating expenses. p. Those which are
ncurrea directly 10y he neat of tue tre h. such
as iraum.us wages, cost Of Iu'l or WaS'e auu M".t
ana Of the plant; these term direc' operating "a
As 10 the first class the road organized to do pros
from Tins tnr annual expense vrnld remain pl1clctN
tn sanc th'uS9 pre- rated per- Ion me | var! a. ,Sg
amount c'iiied IL Il .onF nn's -, ,oori,. an
pensc. which varies per ton lnlie' ii he',r,, "n
The ayer;se pro i%% r yer to" ' eds of co ire
hnsu.-s neither iucrcssiut nor deer tSnS lt-a a.
less volume. but changes when different mc'ho"' are
usG1 li o ~ WIN occnr in railroad operation. can
nov stated Fust,WLen toe rates per Ton ni-e eMGfea
t m th cas- the reeepts exceed tue expenditures
second the rates age greater per toa N e na
tnant e. sum Of both tins case al bus mss WI
be nc d at loss trough we nr0@'T ,t 40
case When II i. policy TO continue oPers''oas as ne ne,
Nouldb loss Is reduced IN amount. lnI1' NV, m".u rn
fa .y per on NILE. m his case al business VIM be coa
io.s' 49,
In det rmiulnS the apProXimaie va.nes o. t,e NaidUs
year. operation. % ...,
Inclease H. volume does not u'.re'ss t . v
nue of Gus Only reduces ti~ operating 'A1,n,es
about % per cent II Is N me eon1 r5s AZ the
items not al at once oa in gradual manner
by d o'g1 n G Of lie oncson in regard to most
ecouom cal speed for trains te cta any n.r noId
OF coal and tue cooperative cos OF hauinE ioueu au
empty CARS. invented ana conetructeu ny
use and next TO the engine. on, On oT rn a
roads. il shows It Is more economical " ,ue h,r
frcea. trains from eighteen i" LWeil i,P "r,a ~
than at ZEN or Nv i've II SHOWS tno 49, ~ l lad.
per pound Of coal tue ratio Of tram expenses
per II c.il.d As4, 'a, IC Ec Tednced to the lowest
Iut consist Mt with safety costs propoTto"atey
more o. maui empty ears ,Ian i cb raroad the sp
est Of movingls froizht per ton mile may
be deteim ned therefore 'he' Cd" "Ho" "D"' -"'''
pay THE MISSISSIPPI RIVER.
w, Uosea Ballon. of Chicago, read a paper on
tho N,..issin,, River improvement system. lie
snot.. -, mart as follows:
Tho s,orv Of the great width OF the Mississippi is re-
markao.e. At Cairo, Ill, IT moved niue gu,
OF II, c''I7D n, SuIl more rcmarkabie than
are the operations OF the Missouri i liver
Al Owe mn, Iot t ~, ~ AID The benefits of It's com
mere in consequence Of which the city be-
caue Inc terminus s5oo ioi IN 'N Omaha three
i'm ita ze These railroads erected depos and STA
oices of general western ntte
acroSs 10, and in common with other railways