New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1859-08-06

h. detecting and measuring the perturbation. due n
the .rtiop of Venus With these improved Lamar Ia
hes Prof Air, b.d settled the ongcontestef epochs
If several memorable ancient eeip-e-, a. those OF
Thni.s Aeafboel.s and L..isss, fixing imp srtsot
., ;,ts % Chronology. In the eclipse OF Asatnocles
Pro- Airy h.j been sbe Dot only 70 give me lme, oat
10 ssy that Ags,hocl.s ID saing IRON nyraca e 20
cary the var into Area, sailed on ne south SIDE
If the island for only there the eclipse total Ao
nlsusel Dr. Caswel then tuned his attention 70 the
work which lies before astronomers. Inc True W mem
tons &, the Solar System stands hfst Oh lhs s' :" Her
y.msuiJ labor The size OF the earth and lie DIST tnce
hom The sun are the greatest ard mot difficult
uroblem. in Astronomy. poo these the piaa-tary
distances as az present a'certsned, oependi the
tables for the older planets require ana
vast amount Of labor viii be repaired " oeternine
the o bite Of the at present % Asteroids Inc theory
Of their fcms.op by the explosion OF ole great snst
will receive confirmation copdemnaaon the posi-
biiiy Of Two If them meeting and conointe Is - be
consde,.d The collar spots with their period of III
years and connection with terrestrial phenoDens,
have but Just been reached. Cometsy astronomy
might at any moment be entirety cha1gea ny iae
spu1srepce OF uew stranger. The ooundless held OF
Sideral astronomy from III ure, requires thousands
Of years for obsery atoms winch are maze upon the
collar sy stem in ten. The special problem OF double
stars ii undoubtedly reward continued inquiry ard
What an nm.p,e field Of observ alton and con lecture
ia opened by variable AID periodical rev and lost
starr But the widest field IL To be found 10
the pebua the theory Of their nature, aud OF thel.
forms, American astronomy datee nom l'bl, aud
has slsayt been one of the sciences most
successfully cultivated in this souutry The applcs-
ton Of astronomy though thas early was followed by
! O considerable active work until leiO. Blu; since
then several srOres have been bu and pp-d
10 manner which will compare favoraoy with the
old and renowned of Europe Tue great
reractor AZ Can bridge second TO bone III the word
the meridian circle there Of exquisite wofk nsIshp.
The telescope Cincinnati has the highest place IN
the second rank The National Observ story at W ash
pgton has equatorial copy of the renowned 10
strumeIt at Dorssa. He mentioned some smaller tel
Escapes.
Dr. CAswELL mentioned a number Of other tele-
scopes in the bands Of amseurs He then alluded to
the character Of the Astronomical observers in the
country as by their published results and stated
that the Am method OF iongtudes, conceived ana
perfected by American genius vas conceded TO be one
Of the greatest improvements in practical science
The euin. N success Of Ftz Clark in telescopes al
SPENCER IN microscopes gave us substantial ground 10
hope that ere long better glass will be made IN this
country than now be obt.ined After aludng to
BowdcL and La Place, and by those whose living
presence forbade the mention of their names, he
called the attention Of astronomers TO thorough pre-
parotion observe the transit Of Venus in lSi Prof.
Ary had already state that he looked To this country
for The ost valuable observation on this trans which
il was hoped would solve for us the great problem OF
the distance Of the Sun. Prof Bond had been the hrst
10 apply photography TO the advancement of astrono-
nv and from his success well as from the other
facts which bad been stated an answer came Ia tue
question-whst may be Justly expected from American
astronomers ii ADVANCING Their chosen science ana the
answer was, Much, every VA"
The ADDRESS although rather long, was Listened 10
with marx ed interest.