130 Scientific Intelligence. 
From which he derives the es position of the nate: ue 1, 1847. 
True heliocentric longitu 
Distance from the Sun, 86 ns 
and remarks that the planet was in opposition August 19th previous, and 
from 207 to 233 sidereal years. The brilliancy of the planet ought to be 
eter at opposition 
he action of whe new planet, with elements as above determined. re- 
conciles with theory, within owe narrow limits, the observations of Ura- 
nus, both | modern and ancien 
aes) +h ast 
tne 1nait 
ference of astronomical ps de for it appears hardly renibie that search 
could then have been made in the place pointed out by Le Verrier, with- 
out immediate success. 
On the 5th of October, (Comp. Ren., xxiii, 657,) Le Verrier ie 
the fifth and last part of his researches, ‘in which he gives his reasons for 
concluding tke the plane of the orbit of wie new planet is sclinad at 
least 4° o the plane of the orbit of Uran In a postscript, he adds, 
that on the Isth of September, he seieanh wilenids to M. Galle of Ber- 
lin, asking his aid in discovering the planet, and that this astronomer dis- 
covered the body on the ek day on which the letter reached him. Its 
observed place Sept. 23, 12°0™ 14°, Berlin m. t., was R. A. 328° 19! 
16” and S. dec. 13° 24’ 8-2; only 52’ from the pias assigned by Le 
Verrier. M. Galle was furnished with the Berlin Aca ademy Sihhane of 
the 21st hour, (by Bremiker,) then just published, yet other astronomers 
could with very little labor have made for themselves from fie star-cata- 
logues, charts abundantly sufficient for the detection of an 
such brilliancy. The whole history of the affair evinces pe distrust or 
apathy on the part of the astronomical observers, and undoubting confi- 
dence on the part of the mathematician,—confidence which the event 
has most fully justified. 
The annals of science show that a discovery has often been made 
about the same time in different countries, and by persons unconscious of 
each other’s labors. The present case offers another instance of this 
nature. on the Lond. Edin. and Dub. Phil. Mag., Vol. xxix, No. 197, 
Suppl. , Dec., 1846, G. B. Airy, Esq., the Astronomer Royal, has 
Sublishod n numerous letters and other documents, (most of which had ale 
pg appeared in the London Atheneum of Oct. 3, 17,31, and Nov. 
1846,) proving that age 4 C. Adams, of St. John’s College, Cam- 
bridge, undertook, as lon as 1843, an investigation of the anoma- 
nus. Asa a ean of his labors, he left, on one of the last ries 
of October, 1845, at the Royal Observatory, Greenwich, a paper 
which the fbllowing i is an ex nibases — 
* According to my pT ra the observed irregularities in the mo- 
tion of Uranus may be accounted for by supposing the existence of an 
exterior mai the mass and orbi t of which are as 
Mean dies) motion in in 365 1° 30"9 
Mean longitude, Oct. 1, 1845, - . - - 5 
Coe nara i © secwggmes® - : - - - ~~ 315° 55! 
Excentric . . . . - 01610 
Mass, : : . : - 0-000 
