Professor C. U. Shepard on Meteorites. 245 



its astonishing intensity. The metamorphic action going on 

 is, at this moment, effecting important changes in the struc- 

 ture and conformation of the rocky strata. It is not stationary, 

 but apparently moving slowly eastward in the Pluton Valley." 

 — {American Annual of Scientific Discovery, for 1852.) 

 • 



On Meteorites. By Charle&JJpham Shepard, M.D., Pro- 

 fessor of Chemistry and Mineralogy. Communicated by 



the Author.* 



>iW3 noii 



1. Tuttehpore, Hindostan, Nov. 30, 1822. 



This stone, so far as I am informed, has not been described. 

 It is barely mentioned by Prof. Partsch, in the Appendix, 

 p. 142, of his Catalogue of Meteorites in the Imperial Collec- 

 tion at Vienna (1843), as not yet brought into Europe. While 

 in Edinburgh last year, I was informed by Mr Alexander 

 Rose, that a fine specimen of this locality existed in the cabinet 

 of Thomas M'Pherson Grant, Esq., by whom I was very 

 obligingly presented with a fragment, and the means of mak- 

 ing the present communication. 



The fall took place in the evening at Tuttehpore, which is 

 situated seventy- two miles from Allahabad, on the Cawnpore 

 road, in lat. 25° 57' N., and long. 80° 50' E. The meteor 

 from which the stone was ejected, was of large size, surpass- 

 ing the full moon in apparent magnitude as well as splen- 

 dour. It passed from south-east to north-west. A number 

 of stones fell, the largest of which weighed. 22 lb., but that 

 in the possession of Mr Grant was the only one in an entire 

 state which was found. It was brought from India by Dr 

 Tytler, by whom it was presented to its present owner. 



The stone is oval, slightly compressed, indented, and 

 possesses a brownish-black crust. Its weight is about 2 lb. 

 It is fine-grained, trachytic, and resembles most closely the 

 stones of Poltawa (March 12, 1811), and of Castine (May 20, 

 1848.) Sp. gr. = 3-352. 



1 



noil 



* Read before the American Association for the Advancement of Science ; at 

 New Haven, August 1850, 



