Te Se 
ae ig 
LIST OF PLATES TO VOLS. XXXI—XL. 435 
PLATES. 
I—Stereoscopic drawing by hand, Roop, p. 74.—Discussion of Declinometer 
Observations = Girard Catlexe, 1840 sts, BaAcHE, 11 diagrams on : — 
—— Map of "Appalachian a ser Guyot, 180.— 
Marsu, 2 plates, p. 311. 
Il. a a pC. ection “of ULS. Coal Measures, LEsQuEREUX, p. 119, 
IV.—Vertebre of Eosaurus Aca us, Marsu, 7 figures on 2 plates, p. 16.—Dis- 
cussion of iantiaaesives” sopsetvations, Girard Coll, 1840-45, Bacwe, 11 
diagrams on 4 sheets, pp. 2 5, 383. 
V.—Iso-magnetic lines of hasta ‘for 1842, BACHE, p. 359, 
VHi.—Configuration of Planetary and Lunar spétems in Times, Hoyricas, p, 44. 
XL.—Eozoén Canadense, p. 361. 
APPENDIX. 
New Planet-—Prof. Warsoy, of Ann Arbor, Mich., announces the dis- 
covery by him of another planet, on the 9th of October. In a second 
letter to the editors, dated Oct. 16th, he adds: “I have just received a 
letter from Prof. Ferguson, from which it appears that the planet discov- 
ered by me on the 9th inst, was discovered by Dr. Peters at Hamilton 
College on the 20th of September. I did not know of this prior discov- 
ery until to-day. It seems that Dr. Peters communicated his dise 
to the ence 9 : Washington, but so far as I know no further an- 
nouncement was e. 
“From a little Siasdabans which I have made I feel —. sure that 
this planet is identical with Sapzho ©, discovered by Pogso adras 
n May 2d, 1864, but sibeequetl lost. The circumstances ts the mo- 
tion of the new planet, as far as 1 have observed it, agree precisely with 
the hypothesis of identity with Sapp speedo. to Poa’ observa- 
tions from May 3d to May 12th, 1 
On 
are made by i. Engelmann, in volume xxxvi of thie a , in 
comme neing on P: 384, 
Meteo ee pamphlet on Meteorites (Aérolites) by R. P. Gree 
of Manchester Repeal the author presents the following System of 
Arrangem 
Crass I. AEROLITES. 
: Orpen A. Sp. gr. mostly antes 1°7—3-2, containing little or no 
talli 
: ae ? 
~ 
i= 
i¢ iron. 
Group 4. Carbonaceous ; Y blasktah, and containing ee 
Group 6. Howarditic ; ash-gray, fin e-grained matr 
resembling trachyte, and containing imbedded efyaiate of olivine 
rthite, or augite; outside crust highly resinous and pite 
Groupe. elds spathic ; containing, or consi isting of, a presen of 
anorthite and angite; crust pitch-black and highly resinous, 
Somer of Rose. 
Grou Crystalline 
; peridotic, shalkitic, chladnitie ; (magnesia- 
