394 Scientific Notices — Mineralogy. [May, 



17. Heavy spar, small blue transparent tabular crystals, 



from Offenbanya, Transylvania 4*473 



18. Heavy spar, a white transparent crystal, from Dufton, 



Westmoreland 4*480 



19. Heavy spar, in white faintly translucent columnar 



compositions, commonly called columnar heavy 

 spar, from the abandoned mine of Lorenz Gegent- 

 men, Frieberg 4*488 



20. Heavy spar, a single columnar crystal, pale smoke 



grey, translucent, from Hiskow, near Nissburg, 

 Bohemia, where it occurs with copper pyrites, 

 blende, and calcareous spar, in a kind of septaria. 4*493 



21 . Heavy spar, pale yellow transparent columnar crystals, 



from Przibram, Bohemia 4*210 



22. Heavy spar, prisms obtained by cleavage from wax 



yellow, translucent, tabular crystals, from Bleiberg, 

 Carinthia 4*679 



23. Di-prismatic lead baryte (carbonate of lead) columnar 



compositions, perfectly white, almost opaque, from 



the Hartz \ 6*339 



24. Di-prismatic lead baryte, similar composition, but of 



a yellowish colour, superficially almost brown, 

 from the Hartz 6*417 



25. Di-prismatic lead baryte, greyish white, easily cleav- 



able crystals, from Bleilaerg, Carinthia 6*461 



26. Di-prismatic lead baryte, fragment of a white strongly 



translucent crystal, from Leadhills 6*465 



27. Rhombohedral lead baryte (phosphate of lead), a 



single green crystal, from Zschopau, Saxony 7*098 



28. Arseniate of lead, bright yellow crystals, from Johann- 



georgenstadt, Saxony 7*212 



29» Hemi-prismatic lead baryte (chromate of lead), several 



isolated crystals from Siberia 6*004 



30. Pyramidal lead baryte (molybdate of lead), longish 



deep wax yellow crystals, from Bleiberg, Carin- 

 thia '. 6*698 



31 . Pyramidal lead baryte, fragments of an orange yellow, 



perfect crystal, from Annaberg, Austria 6*760 



32. Prismatic lead baryte (sulphate of lead), broad, 



deeply striated crystals, of a white colour, and 



faint translucency, from Leadhills 6*228 



33. Prismatic lead baryte, a white translucent tabular 



crystal, from Leadhills 6*298 



35. Prismatic lead baryte, fragments of a large semi- 



transparent crystal, from Leadhills 6*309 



36. Axotomous lead baryte (sulphato-tri-carbonate of 



lead), the acute crystals commonly called rhom- 



