Vol m 



Plate ^ . 



r. , Royal PhifSLcal >5ocieiu, £dinbTJLPQk. 



Gnomonogpam 



O F 



Q uartz. 



(Chiefly Danas Symbols) 



W >3 



( by permis5ior. of Alex. Thorns tsq., and che Publishers of Mineralogy of Scotland.' j 



GoODCHiLD. M'KarUtiB * SrsKu 



