Astronomy. 135 
as real and perfectly certain, hoping that he will soon be able to profit all 
breeders and agriculturists in general by a discovery which will regene- 
rate the business of sg Ala eeding. (Signed) G. Cornaz, 
Montet, Feb. 10, 186 
ee Aine of gt br American Butterflies; by J. Wm. Weme- 
2 pp., 8vo, From the Proceedings of the Bototholepie aE 
Philadelphie Printed by the Society, 1864.—The species included i: 
this carefully prepared Catalogue are those of the Diurnal Lepidoptera 
and the names of all are embraced that are known, pes _ to inhabit 
the continent of North America from Panama to the Arc rences 
to the more accessible works are given and also to some siciedl the 
my. 
IV. ASTRONOMY. 
- Altitudes of Shooting Stars; compiled by H. A. Newrox. (Com- 
bctinte for this gee oe )—The @ following table contains the es 
altitudes, above the earth’s surface ce, of certain shooting stars, 
lieved that it ade nearly all those which have been publis ig Nae 
of them are unreliable, and for all we may reasona y assume a lar, 
probable error. Yet taken together they have value in investigations in 
terrestrial physics, and sg furnish a basis for important deductions re- 
specting the shooting stars themselves. The observations in August and 
November last will furnish considerable additions to the table. 
_ In the The and third columns are the dates of observations in local 
in their estimate. In the fifth column is the computed altitude above the 
earth’s surface of the shooting star at its first appearance. 
the geographic mile, the sixtieth part of a degree. In the sixth column 
is the altitude of the shooting star at its disappearance. 
In the next two columns are placed such altitudes as the observers, or 
te gn considered uncertain, and some others which for nn rea- 
especially unreliable. To the former class belon 9, 
16. 20, 35, 39, 40, 48, 56, 65, 73, 83, 95, 96, 102, 103, fee 107, 110, 
oO 
ze 
146, 176, 206, 219, 223, 228, and 292. There was a s fi 
a large probable error, for Nos. 8, 50, 51, 60, 79, 88, 90, 91, 121, 123, 
124, 154, 160, 196, 200, 217, and 218. The altitudes of Nos. 125, 128, 
131, 185, 136, and 167, are very improbable from their magnitude. 
Other large altitudes, as tell as many of the smaller ones, might perhaps 
With good reason be also transferred from the fifth and sixth, to the 
seventh and eighth columns. 
The following are the books referred to in the last column. 
Ve die Géschwindigkeit, etc, 8y0, Hamburg, 1800. 
“creda oly caiennghne emegrmagranle aaron 
; erhaltungen fiir Freunde der Phys. und Astr., Svo, Leipzig, 1825. 
aie Grane, Nachrichten, — to by the letters A.W. 
ik cai Sternach, ete., 8v0, Berlin, 1852, 
eae - Geogr. und Meteor., 8¥0, Syvo, Leipzig. 
