, 1869-01-13

Tr0ugucftops q. Tho DcnrbotR ID
Ob1ef v0t0ry Tor 1tyo
IGaFh.
Report Of the Dir so!or to tia Chicago
Astronomical Society.
interesting Information.


Hon. j. Y. scsmmoo, President aEa uon. Ta"ma.
Ee,ur. Secretary, Of the ctie.Ga AHAonoiolea'
Society:
lEkr11M1N: hare tho toEof n m.kf u io'
lowing report OF pr1cccd1pc' al 1Eo ltsafoa'n
Observatory. Alter The ectt1uC M o toe Eses'
xuraturlsl IL april, 1868, II "as fourd inst tno
creat d2ue Of tic Dearborn Tower. t5c mncu'
cent r,ft Of the P1es1dent, begau to move With
raorc .nd moro difficulty. THIS was Originally
constructed ro,ucwha. after the model VI tsas OF
the ohe,r r.atc1y OF paTArd to.lece, bue ts
heavier. Cpon cousulritg John N Van osaell,
Esq he At siscd applying tue 20 .e-'n oi5erent
uautcy t1Ccly, uu buth des OF the q >nls At
orec: connection to be carried thtuovh shat
h~,ow the hoef Of the dome. Thit Was Accom-
pIlsled se:f satisfactorily In 1s6t. by the N,r;h-
wcrte1u Manufacturing Company. fro n dIa xluEs
Er.ntths ty Ae. vaa osdel!.
The ohs.lytug ceair, preeentel by D, ]. ETY.
EsQ., of New FORK, member Of the boa:d Of Di-
tcctots. vas also conf:suc.cd In the same year.
from Nit. Van Oatclls cravings, by the sAme
company; tie general plan beng that Of the
chair employed At Cambridge, With some mut,f
Cations. 1t has worked rerg est1sfa- oily ard
we'll
In the errtng Of the present year, whcn was
infotmed by the makers Of the meridian ciseln--
Mctesr. A. Kepsotd 4 Hurr, Of u1ner7c-.hkt
lhe instrument IVES nearly ready for rcaaznen1s
the building fur 1t was At once prepared, upou
csoupo 10 by ii feeJ gtautcd for the puspotc hg
the Executive Board Of ite CnNtisits. The
Iouhoh,ton foE Tie itr1tpm!tf. anu r per,
were, tt eoutse, trsrort4nL cans1Je'asoae. Affct
INQUIRY 0, arct,ferte MD .n1tc.tTs. 4 WAS dccl-
dcd 10 Il. ,Ia4s Or CO. c1cte. tseitc fec b: az.
and thtt i fee. thick, upou The csnrretc 10 plaee
d,nen>jo etoEc OF eicrf inches 1nicK"es,, Ana u
pIaee thr p;'ie up1n fnlt. For ths piers, d!a*.
r7t i,t.1 ATH y
c.fne ID. n4t no. 70 make then OF s1on:, ou. Of
BRICK We ieAt1tu atso, snueoetden.5. lhaE al
Gov.rnmcnt-bri-I K pier. b.d ta1va 'os p'acc q
S1alitr. 5.T iLe rrirr:ph! uaesiri4~ !uss.nnents.
All trc work, 1rcicd!rg the cnnc.":c. 61mtl-
sian sitre snd rirrs, .. we'll a.tr- fo5l7st1ors
and cl.ta ncy Of tic pulio.tG 70 soser TIC insuu'
I'll nj, wss ocpt by Mr. X E, Mars. .te h11ic'
ns su1 ron en'y g. IL H.
nY M vsn Osdell. rhr i nrn..oEr ats slt1L
ips'rum+tt laup the q. 4, rIae, aud 70 1ncta.lc
tartnt. shelves; The fnrmrs for a steoplHt hpIss-
1Hcnt s,d:o eouss1a a e,orc ~ dEJ Tho sir IL the
1hc .,nlcnsfona OF thu hutdtnc not b,ius very
ia:cr, i "as n,crssasl 10 kasa ,ert tr,. vsnt,.
j.l1sbca Is tic DIP shutter !4'oc, 1ee: "a ". Il.
tnscs1pe III, 'ul' ii the foof and J, thu tt'd.1 <
~thdo"" z fr.u.:e pF"',, essa h1 hl'n: 80: ~
1ug I. IT otcr. IN tan be en*i ~! .lu.ru
viii rr*tta.c. n" .,nr'st 1,tau II !as 'u,l
4ik, tHHflss alA Hn tff Ia H4* 1futH tnll
M1hc 'us:. in. ior 't:e pscat ur,tl"t h trsas,t
et.clt. TIC pan:tN. .sAs A.es h. s~@.f.. H.fsY
4 Gushing. aid ~ tas'cEuil5 elcc:iud: taoru
i'll ~. fl'.i.n t1xele co.t in uermnn.. ,u:lar,se
ufphek,a4 i.i1l l!a'u'7 rIsfk, "r Ia knsi1,l !
: :it% f *: 'ts:': *s aa,s u
!hsuianee 1l7a: In Al a. G~Sd u tnIt sum
s,ootI ~r1r snrn Il, W. "4'nrc, E4q. c'vtt
I!,r !htfr-rr uIt9'. tl,u "'1:itn %r'naR tiaA tus
f1rps.e ,al1.L ri ttr rurr. my rtncr in hris1nt
.hum,,r IT'D lsun thr duly ii 1o pr ccLt slncs
itn1ott d.
In se1sttng nn nnseryau n4 nt tnn DAtsh 'rn
ta't.rator3. haze hcen heelr3i. ua1 the 1esult'
t'ntalnta rnuh!a ~ -. petEt@Iett sa'us ~ ~
sacniAa tnrAnt employed.
Or 1aic 3r*'a tEc drpaHnent at t'dcrtai a.
tztsuoruy, which turtuuef alsn iht LeHu!lc ~.
clusters Of stas4> hsa heeu74c. tna.ks to tn
l4bors OF tho HCrsrh.lr Apd ,hr L7 4z.dt+, NJ vel
1n.1, na IL onr own .oan,s, of ,hs s s.sas. iatas
sna son E.es.,y a.s ; i.ss - nopi e.
sr.xt iatcrrsI. hotn s,Ib ref rrnee me pn,s'ca
0asu1e. Rlu to the motions, af tho n1tvnssc ou
ST. Vim. usftchri employed 4 Ct At ref .ctor |,
ibc formation Of & acs5asosAs OF TIT n-nutH s!A
bic w1tn It: Tits 8orA has been cottluu-a ny ht
son Sir John. and IA terry ny L9sd tto.ae ant
others, tboneh ty no1e - coat'Iuoa.'r anu sb11
cugh!; a. by the Hcrsche!t; ana continuance I
;het Hosk With G..t great rc:factor IL IN Onjee
h4St heen here: osc4e.onaty ,n.eru;ttps It. &c
otter wotk, as veil as ~ epc=ln d ucaes "h
xirstors arc adH'tted he ffoit a,s pes. . ,ns
11u new nchu H not contained IN tue c:net4 car
logue publithcd in 1884. and containIg. AS +
pthrr sR's'ngue does. the retass Vi hotn h
t4sheT'B worK and his o~n, nn1 h.so lun
renxrke 1nd corrections up,n the nepu!sa
1tat rstalo7ue which nave cone scr IS. The
Is enc qu;:e remsrkehie case Of &c ,ala Hhicu
now anhu1ar or FEEE Ecn1la at Enc1ttvhI l. ttre z
asr shape: vh.e fhc "hee:v:Mtot+ Of tue q
Eehcls mske It brighter IN The u;doM. ha'
sesn It tbr Three tnccctstse years. th4. tlnr- IL
yacarcJ fheEc. Tne.e IL an o,-.1y4t,nu Of u
Dauest at Copethsg =. wk'ch a-.rc. .,.n I,
nEhuiu' III. a. n .~k1nner, my assistant, i
ds aksn so@c rs.t; II he h,e touad .e:en u tbs =
r8ptci1y o: the wofk-
Be late fsof: q +: bond spsnf n. fsst r
s1teu+svc wosx upon the creN n-h-ti nj usoI
ibis WAS nrpnsst ed y his cta.h a-u, 40 far
materials Which Re hat iefr for 1t sui RI. or1l
"! obsrrrati=ns upon !h'r rvhusa f'u-d in i
vy ,ha s' s',s q
yEd Coll-Ee D:tesvntorf, eti 81 by mtrc
Naturally. h.ve f',ca to complete :u's ~
born Observatory, ana nave coliAeted como n
1.nAE h'ss.oF' ihe most IA eretnuk results !
shat re neo1;a seernt to con air oanlb+ uf ca
neesed rinrr. one Ct watoh ,e the great nnr nl
reen II 1854 ey r1ol Hs,nd; an tp.r Isl. RI
cheated Il e11 JOHN Hesscoe'- drawing. .nu II
The p.sent srss d viii. TO :, Nv. runs ~
a:Eh,. ri IL ~. IT IT.. esSs.1, "h,cn c"me. u sin
o rcrde1ins meus tst1 10 s:sst. ses so y
iurce viii perfect c. 1,s,uty,
The eonpiet,ou II Froi Bo-d'a work in
ntber elrcr1iUn. Eamsly vita :. rar1 to Il. nj
lions AZ Na%nltur es Of The stars. nae III ,,ca.
ne,as,.1 - ane a eesnaae. and n5 u,'u',u
1dts work fas pteu 1adcr:aken ~ 1,,,, ~ =
c9ua'os.s! xncts. -
ihe.e arc ch.ctva.incs Ct e'ar. DIVA +, ,
.er'h magnitude ca Ar-c1sencr'r .cw r.1ir
Shout ,hv swe'tit. 4. >hny were t.e ,rsat.d
mnt,ass, Ssnan 1s ,5eias.lr u al 81 n a'n
ujsef; ana | hay" began tte euuae Eo, a.
sesSs,,nn fcsc, within 3e4s: the rssuit
oeen 9slS oh.:Frdt'on. or a7oa: 3.ttt .rar.
d:fcr. nee t,c:ag u,1tcate ,,b-ersa;1or. r. :
zane stAr- 1arae onsrrvaf,op- .7- nu,,nr !
ai saost aees1s.e zcte~'hserv i i'm. aver aaae.
Con'c pe tdade mnfe nu Derou4 and epu "a ~
assura:e haa We: y 3, Cam '>r1a ~. csocz aat
ctrono9rs2h bare taonrt1t OF son iuy:o1
be t. these respects, and .ula he carried q
"1tn lit'e etp:Ite; and htve c.rr,-d m 40 !,
s,oEsmen1 ia TIC m.anss Of eon4ac ing 1oe y ),
smell. TO observe IL ta:s Ea.rl.r oulr
Ee 5eE,aa. full OF stars, as tnoae rrar Osssa a.
tpe ass naAs ay gentfail1, isa.i .iut ;se uor- spal
to1fols 70 er done With tie meridian r(rc!..
- the dense. pAsts whtcn sse swass oehinah,
1nsIstcnRtlc watl Of tcis Aiu1.
II sefeff these zonet 1--we nscn observed
highs not favrIao. e1lher from IN ,orlis.t i:
os asmo. pneric unsreadinc {. If NJ; 100 re II
o]loT stesratr ob'c1vauout. for tx ..
hchn.ae: IN good m4uE cases ntEn xeea I
.maiIc- tnsttuE'ents woa1l give hat 1ns: nr
i'tnltr; t', Tte p.'lleJ Of using c:-ss vt1us,ors
1:af. brl-a, erd tEe.e = E5w d. .o-i:i.,r to
tne" edge - corr. etuett, 4 review uf a lat,
}ahl sired voluu. II tn- wurx ose al "a = o,;.!
- los;-55, ffcm The tl7artetl; .,oaeL4t ut ,
ieE'-a ar Astronomical so.i y. sre4k- or /
'1reb1u:1Nrv accnsscy Of tic nb.cfrattous f
;h''t t.I sau prop rrtEet?on, Enwtvsr, a 4
ss:E III t:.: h 1o1e mItt be upstrv.d eth Dr.
ar t'*si:isn c:tf.e. bi:E tue t ,1u ride i
s'EvaanI, az Eot then pclsees. A c-e4r aay,
.afc " nsiUr 30 iarpe 1T lne:Enmen. Tor tnI. n
rose II 10 It'll III time wB,n .I:.er " rs or er.
lrcFcLt importance eannos he tyu~ -
During the f1st -rmrner hase a,sia a -rr
Ct ooftF'at.oas upon ths eatci1t.- IT i am
SLd Il seems hts: ehat these ttou!l be cou,inr
IRON time % TING. 1t1 the pJaret i. ii a f.ys
pic position. Thesc 70 long e4rite ot obs e7
::ons usde BY uysef a. Cambridge On IN
poctce, Flach efc ret an.edocca
The aeeuratt n'r1oue'1 al eterlu nation or
E'aeet Of al the ola Ieo1'ae, vt as.i ~ Of th
scu1d in cur searches ios them. Is IN oa,ect
t'reat Importance. I h2re btta deter ca suo
tcs,sksnE J.a't CT it By wish ~ r4yrit dtTld
Up Auorr tnc GiceEen: ob.errs.or.es; 4ni d
also ntltrd IN EneE wta- {, 4.s w-sr % - =
tained u tho Erraf Catalogue Lo : 1T prn .ex
formation {h1 Leriuian e,rc!. ons.rrstl,n.1
nc Ieia IN Asisonoalcal saeIesy. sosa tac
OF .ht@ Kind tAvc btta tutY re ii ,ntz.d +,e E,+,