*54 



ON COLOURING GEOGNOSTICAL MAPS, 



o^^o Alum-earth, 1 



[» Liver-brown. 



Brown andEarth I 



Coal, J 



Conglomerate, and 1 p a l e orange- yellow, 



y slightly inclining 



Claystone, j to reddish -brown. 



Hj| Sandstone. — Straw-yellow. 



* • 



• Sand. — Yellowish-white, slightly inclining 

 to red. 



Loam and Clay. — Yellowish-grey, 

 passing to ochre-yellow. 



/^\ Iron-clay, and 



y Pale ochre -yellow. 

 Calamine. J 



/ \ „ Turf and Peat. — Liver-brown streaks. 



*0 



f . , 



*0* Bog iron-ore. — Ochre-yellow streaks # , 



* The following observations will serve to elucidate 

 the Wernerian symbols above enumerated. The symbols 



