Astronomy and Meteorology. 



Meteors observed at Germaniown {ne 



ar Philadeiphia), Pa. 



Aug.lJ. From Oh 30- to ]h 0"ia.m. 



11 meteors. 



10"! 15 " 





] 15 « 1 30 " 





1 30 "1 45 « 





1 45 " 2 « 





2 " 2 15 « 





2 15 '2 30 " 





2 30 "2 45 « 





2 45 " 3 " 





3 «3 15 « 





3 15 " 3 30 « 





Total, 



"sF meteors in 3 hours. 



ther perfectly clear, fall moon shining. 





It is greatly to be desired that some of the meteors above reported by 

 ^J- Marsh (particularly the 2b lO-n near § Persei) may be identified by 

 observers at other places. If any observer suspects an identity wuh bis own, 



particulars of his observations— as' Mr. Marsh is understood to have cor- 

 'espondiug particulars on record with which a corapariwn may be made. 



Alex. C. Twining, for the Com. of Conn. Academy. 

 ^ 5- On some North American Meteorites; by C. F. Rammelsberg.- 

 ^mmelsberg has communicated to the Beilin Academy of Scpences an 

 l^amination of the meteoric stone from Bishopvijle, South Carolina, 

 f 's results differ materially from those obtained by Shepard and Sau- 

 tonus von Waltei-shausen. He concludes that the siliceous Portion of 

 tl^e stone is not a simple compound, but probably a mixture, and hat the 

 ^"mption tliat it contains a supposed trisilicate of magnesia (Mg m)— 

 ^ne^chladnite of Shepard— is not justified by the observed facts. His 



57-52 2-72 1-25 020 34-80 066 I'H <0 80=99.9 



Ramraelsberg observes that this composition som«what resembles that 



of the olivine-like substance from ti.e Grimma meteoric-iron analyzed by 



Slromeyer in which the latter found Si 61-88, Mg 25 83, fe 9-12, Mn 0-31 



