GEOLOGICAL COLLECTION. 27^ 



of small columns of amethyst, some little cups of 

 chalcedony, chrysoprase and amethyst, with 

 several cut precious stones, such as diamonds, 

 oriental rubies or red corundum, oriental sap- 

 phire or blue corundum, chrysolite, etc. 



On the fourth shelf we observe, amongst a 

 second series of polished slabs analogous to the 

 preceding, variously coloured specimens of rock- 

 crystals, some facetted, others en cabochon y that 

 is, simply polished. In the front row are several 

 specimens of artificial precious stones, from the 

 manufactory of M. Douault-Vieland, jeweller, 

 who presented them tot he Museum. 



Objects varying greatly in form and substance 

 are exposed on the fifth and sixth shelves ; amongst 

 which may be mentioned, a beautiful box of 

 yellow amber, several large slabs of Florentine 

 marble, different tomahawks of savages, a cup of 

 red jasper, and a large spoon of greenish jade, 

 which is considered as a rare and precious 

 object. 



