434 Scientific Intelligence. 
the brightest being that eR the nucleus. On the 25th, aes =~ 
were seen, and many others have subsequently been formed, a 
the eye of the observer, their mots on of projection from the ue ar 
evident from night to night. Their process of formation became at last so 
familiar, that their appearance was on several occasions ncinaally predicted 
from the condition of the nucleus just before eac 
moh important part of the comet’s apparition. The —- ~~ 
measurements are now in process of reduction. 
Donati’s comet is apparently new to scien Mr. Jas C. ‘Wate 
of the Ann Arbor Observatory, Michigan, farnished. the following. Be 
abolic elements, Aug. 25, 1858, in Gould’s Astron. Jour. No. 116, 
Time of perihelion passage, 1858, meet soe 7 or Wash. m. t. 
Longitude of perihelion, = - — 
oe if 
* asc. _— - 168: a * 1858°0 
Inclination, GS 9. & OH 
Log. of a distance, - 9°763374 
tion, - retrograde, 
n a communication dated October 2, and published in Gould’s Astron. 
Jour. No. 117, Mr. Watson states that these elements well represent the 
observations up to the middle of September. After that the discordances 
between the observed and computed places were considerable, and he 
therefore sarod: from normal places, for June-11, Aug. 13, and ee 
25, the following system of elliptic elements. : These give a perl 
revolution of 2415 years, which is necessarily quite uncertain :— 
Time of perihelion serie 1858, Sept, 29°736355, Wash. m. t. 
Lon ng. 0 of o Ud 
perihelion - 86° 13’ 6-2) M. eqx. 
: Me node, - - 165 19 11°85 1858-0 
Inclinatio SEE 63 
Angle of exoontriity, - 85 24 22°6 
Excentricity, Stiney 0:996787 
Log. semi-axis — - 2255279 
we perih. dist. ee 9°762303 
4. Seventh Comet of 1858.—The following parabolic elements of the 
canes comet discovered Sept. 5, 1858, at Harvard College Observatory, 
are furnished by Mr. C. W. Tuttle, meagre under date of Sept. 14, and 
published in igs Astron. Jour., No. 
cme Tih. passage, 1858, ot im oy ge Sgt m. t. 
“sn } M. eqx. 
- - ab S "0 1858-0 
5 47 
niet i tp ee ee 
Log. perih. dist - - -  0-15267 
a Seo a os z 
| Solar Eclipse of Sept. 7, 1858.—It will be remembered that 
mt to Pera in August last, under the auspices of the 
