208 BASALT. 



crystals, and in general the rock appears similar in character to one produced by the 

 partial fusion of an inclosure of sandstone, granite, or some other rock, in basalt. 



After furtlier description, Lasaulx decides against its meteoric character, and appar- 

 ently justly.* 



Waterloo^ Seneca Co., New York. 



The so-called meteorite of Waterloo, described by Shepard,f is considered by 

 Eammelsberg to be a clay. | 



Concord, Netv Hampshire. 



The meteoric stone of Concord, described by Professor B. Silliman, Jr., § is now 

 preserved in the collection at Yale College. 



A macroscopic examination by the wiiter convinces him that it is a portion of the 

 consolidated scum or froth of some slag, and this opinion seems to be held by others. || 



It would be a matter of the greatest interest to prove the fall of 

 meteorites more acidic than the basaltic variety, and it is not impossible 

 that further microscopic studies will reveal that some already known are 

 of the andesitic type. 



* Sitz. nieder. Gesell., Bonn, 1882, xxxix. 108-110. f Am. Jour. Sci., 1851 (2), xi. 39, 40. 



+ Jour. Prakt. Chemie, 1862, Ixxxv. 87, 88. § Am. Jour. Sci., 1847 (2), iv. 353-356. 



II G. W. Hawes, Geol. of N. H., part iv., p. 24. 



