Scientijic Intelligence — Mineralogy. 187 



on discovering ourselves in an entirely new locality. I saw at once 

 that a land-slip had taken place ; but although I have read of simi- 

 lar occurrences in the districts around the Alps, I was not prepared 

 for so remarkable an instance as had just taken place. We found 

 ourselves at least a quarter of a mile from the original spot. The 

 farm-house and out-buildings were all entire. A range of poplars 

 which grew in the neighbourhood of the barn, still occupied the same 

 relative position to that building. The only change observable was, 

 that a stream which flowed a little below the Airm-houses had en- 

 tirely disappeared. The most singular result of this movement is, 

 that the farm-offices of my friend Mr Gourlay are no longer on his 

 own farm. They have been projected upon the lands of a totally 

 different proprietor; and it is supposed, that, unless he manage to 

 rent, in addition to his old farm, the portion of land on which his 

 steading is now located, a good deal of nice litigation will be the 

 consequence of this sudden and unexpected event. — 3Iontreal Times. 



MINERALOGY. 



8. Chrome in Magnetic Iron Ore. — Kersten has detected traces 

 of chrome in the magnetic iron ore of Seegen Mutter Gottes, near 

 Altenberg, in Saxony. — [Erdm. unci March. Journ. xxxi. 106, and 

 Leonhard and Bronn's Jahrbuch, 1845, Heft 2, p. 199.) 



9. Identity of ChrysotiJa and Bcdtbnorite. — E-ammelsbercr has 

 shewn that the chrysotile of Kobell, which was first described by 

 that mineralogist under the name of Schiller-asbestus from Reich- 

 enstein, and which is distinguished by its metallic-pearly lustre, is 

 identical with the Baltimorite of Thomson. As the latter was de- 

 scribed subsequently to the former, the name of Baltimorite must bo 

 given up. The following are the comparative analyses : — 



99-78 99-80 



— Poggendorff's Annals, vol. Ixii. p. 137. 



10. Occurrence of Native Copper, Native Silver, and large veins 

 of Datolite, on the Southern Coast of Lake Superior. — At the 

 meeting of the Academy of Sciences of Paris, of the 3d March 1845, 

 M. Elie do Beaumont communicated a letter fi-om Dr Jackson of 

 Bo.ston, which contains an account of the occurrence of native copper 

 and native silver on the shores of Lake Superior. At Point Kew- 

 enaw, on the southern coast of that lake, copper generally occurs in 

 the metallic state, filling the cavities of an amygdaloidal trap, which 

 forms very thick dikes, traversing beds of old red sandstone and 



