216 



CATALOGUE OF THE 



[3gth day. 



4663 A fine polished specimen of dark green asbestos, a ligneous 



asbestos, and an amianthus /2* 



4664 Octohsedral marcasites, solid marcasites, cockscomb mar- 

 casite, and marcasjtes coating slate, from a quarry near 

 Dublin Y^ly 



4665 Marcasites on coal, ditto in breccia, from Staffordshire, 



and a polished slab of fluor ^ """^T. 



4666 Large and interesting cut specimen of fossilized wood, in 



which the ligneous .structure is perfectly well preserved., 

 Hesse /«3^ is 



4667 A large and very fine specimen of dendritical nickle, Hesse ; 



very rare /■*■»-/ 



4668 Part of a stratum of steel-grained cobalt, Hesse ; fortifica- 



tion cobalt, ditto j and light red cinnabar, Idria 



4669 Fine specimen of violet cubic fluor, partially covered with 



pearl spar, Durham j greenish-grey cubic ditto, ame- 

 thystine ditto,^in fine cubes, and another exhibiting the 

 fracture 



4670 Mesniiite in the matrix, from Montmartre, France j 



polished cauk, and two specimens of mica /& ■% 



4671 Delicate pink arseniate of cobalt, coating the upper sur- 



face of a fortification cobalt, Hesse ; and red quartz 

 crystals, Bristol jjSt*** 



4672 Crystals of lepidolite in white quartz, Moravia.; bright 



green zeolite, Palatinate (cut and polished); porphyry- 

 like nodule, containing in its cavity, quartz crystals, 

 with a bright feruginous coating, Germany //' ■■ 



4673 Beautiful onachine cornelian, red and white Oriental 



mocha, and a small agate, bearing the resemblance of 

 a head / - * $ *> $ 



4674 Very fine Oriental mocha, beautiful orange-coloured cor- 



nelian, and an orange ditto /~~ /j? Gf 



4675 Lepidolite, and a short truncated "hexagonal column of 



mica, both from Moravia *>p 



4676 An elegant specimen of light bluish green calcareous de- 



position, finely coloured by tjie.oxyd of nickel, from the 

 cobalt mines of Hesse / 



4677 A handsome specimen of foliated native gold, Hungary 



4678 A most superb and large specimen of mammillated rose- 



coloured arseniate of cobalt, on a ferruginous matrix, 

 Hesse $f 



4679 Large and very fine specimen of mammillated iron ore, 



, the surface exhibiting a brilliant golden gloss, Germany 



4680 A noble specimen of tellurium, or aurum-graphicum / ■;* 



End of the Thirtyninth Day, 



