322 PROCEEDINGS OF THE AMERICAN ACADEMY. 



f: (4-6-10-1) = (515). This scalenohedron was also described 

 by Whitlock 88 on crystals from Rossie and Lyon Mountains, N. Y. 

 In both of the above occurrences the form agrees well in zonal relations 

 with other forms present on the combinations. It also falls at the 

 intersection of several well marked zones on the general projection and 

 is referable to normal series N 4 . It may be regarded as fairly well 

 established. 



Zone 6 = Z 6 Scalenohedrons of the Zone [0221 : 4041] 



— = — - (Miller) = 2. Symbol - • 

 I k 



In this section of the zone [0221 :4041 : 1120] = [111 : 113 : 101] 

 a knot obviously falls at the pole (2131) = (201). Splitting at this 

 point and developing the zone fragment between (111) and (20l) we 

 have : 



This fragment of the zone referred to N 4 is quite incomplete and 

 contains the extra forms, y, y, § and 13. 



Oi (4-20-24-11) = (13-9-TI). This scalenohedron was recorded 

 by Melczer 89 on crystals from the vicinity of Budapest. Apart from 

 the fact that this form falls in a high normal series, the zonal relations 

 of this pole do not indicate a high degree of probability. The form 

 should be classed as doubtful. 



88 Whitlock, H. P., N. Y. State Museum Memoir, 13, Plate III, Figs. 3 and 

 4, and Plate X, Fig. 1 (1910). 



89 Melczer, G., Fold. Kozlony, 27, 79 (1896). 



