THE COLLECTION OF MINERALS 
(Desk Case 12), Beryl (Desk Case 12, Wall Case R), Garnet (Desk 
Cases 12 and 13 and Wall Case R), Zircon (Desk Case 14, Wall 
Case S), Topaz (Desk Case 14, Wall Case S), Tourmaline (Desk 
Cases 15 and 16, Wall Case S$), the Zeolites (Desk Cases 16 
and 17, Wall Case S), Mica (Desk Case 18, Wall Case Q), Ser- 
pentine (Desk Case 19, Wall Case Q), and Tale (Desk Case 109, 
ARAGONITE ("* FLOS-FERRI”’) FROM STEIERMARK, AUSTRIA 
Wall Case Q). Besides these there is a host of less important 
species. In Wall Case K may be found a beautiful example of 
Rhodonite, the silicate of manganese. This interesting mineral 
has a remarkable development in the zinc area of northern New 
Jersey, and the exceptional group of prisms illustrated on page 
,evond the silicates are the salts, or compounds with bases, 
- - - °-4 . . rive 
of the other oxygen acids. Here come in order the Titanates, 
