f 



196 CATALOGUE OF THE [35th day} 



4185 Piedra d'Ynca, and eight specimens of brilliant marcasite 



4186 Three varieties of phosphate of lead, and one raolybdate of 



ditto 



4187 Siickensides galena, and five other specimens of galena 



4188 Stellated gypsum in well formed crystals,, on yellow gyp- 



sum, Sheppy 



4189 Seven various volcanic productions from Mount Vesuvius 



4190 A fine specimen of Spanish black chalk, penetrated by 



veins of amianthus 



4191 A polished slab of Spanish avanturine 



4192 A very large mass of galena weighing 293 fc, Derbyshire 



4193 A ditto partially crystallized in very large truncated cubes, 



and coated with calcareous drop stone spar, ditto 1 



4194 Violet cubic fluor in very large and perfect crystals upon 



quartz, the surface of the fluor elegantly sprinkled with 

 minute quartz crystals, Derbyshire 

 r 4195 Three varieties of selenite 



4196 .f^ive gold very beautifully foliated, and somewhat crys- 

 • ' ( talli zed, Hungary 



4197 A capital specimen of clear tabular barytes, from West- 



morland 



4198 A large and very fine column of basaltes, from the Giant's 



Causway, Ireland. The specimen consists of five articu- 

 lations / 



4199 A very large mass of white quartz crystals Cumberland 



- 4200 A large and remarkably fine cubic marcasite, with a fer- 

 ruginous coating, said to come from China. The same 

 kind is brought from Peru, and is called by the Spani- 

 ards Piedra d'Ynca, or the royal stone. A -specimen of 

 this magnitude is very uncommon 



End of the Thirty-fifth Day, 



