FALL or MOUNT ItOSENBERCJ. 149 



part of the weight of the stone operated upon. This green 

 residuum presents all the qualities of oxide of chrome. 



As the stone of Verona is similar in all its physical pro- Other stones of 

 perties to other meteoric stones, the author of this me- J^'^'^^j^"^^^^*** 

 moir wished to ascertain if others also contained the 

 chrome found iu that of Verona. He accordingly exa- 

 mined i^ragments of the stones which fell at Ensisheira, at 

 iWigle, at Barbotain, near Bordeaux, and recently near 

 Apt ; in each of these four stones he discovered the pre- 

 sence of chrome. It is remarkable that the stone of Ve- 

 rona, -wherein he first observed this metal, is of all the 

 five, that which contains the least, its portion being only 

 half a centenary, whereas the others contain a full cente- 

 nary. 



The author draws from his memoir the following con- General con- 

 elusions, in which he is fully countenanced by M. Vau- elusions. 

 quelin.* 



1. That the five meteoric stones of Verona, Barbotain, 

 Ensisheim, Aigle and Apt, contain, besides those princi- 

 ples already known to chemists, the metal called chrome^ 

 in the proportion of about one hundredth part. 



2. That it is very probable that all meteoric stones 

 possess this principle ; since they all resemble each other 

 in their physical and chemical characters, and have all, so 

 far as has been hitherto ascertained, the same origin. 



3. That in many cases, in order to attain the requisite 

 precision of chemical analysis, it may perhaps be expe- 

 dient to treat the same substance with both acids and 

 alkalis ; as experience demonstrates that parinciple may be 

 overlooked in one case, which will be obvious in the other. 



XII. 



Account of the dreadful Fall of the Summit and Part of 

 Mount Rosenberg^ zchkh happened V7i the ^nd of last 

 Month. 



Bern, Sept. 7. 



NFORMATION has lately been received of a 

 dreadful accident which has destroyed several villages iu 

 tlie canton of Schwitz, situate between the lakes of Zug 



and 



