OllDKR I. GENKRA AND SPECIES. 455 



CHARACTERS 



OF THE 



GENERA AND SPECIES 



OF THE 



ORDERS OF CLASS III. 



I. ORDER. RESIN. 



I. MELICHRONE-RESIN. Pyramidal. 



H. = 2-0 ... 2-5. 

 G. = 1-4 ... 1-6. 



1. PYRAMIDAL. Pyramidal. P = 118 4', 93 22'. 

 Cleavage, P, imperfect. 



Mellite. iii. 56. 



II. MINERAL-RESIN. Amorphous. 



H. = 0-0 ... 2-5. 

 G. =0-8... !. 



1. YELLOW. Solid. 



Colour yellow ... white. 

 Streak uncoloured. 



