OEMS. MINERALS 1 17 



A partial gradation in importance and value is obtained by the arrange- 

 ment of the gems, beginning with Diamond al the extreme south and pass- 

 ing north, case by case (through Corundum (Sapphire), Beryl, (Emerald), 

 Topaz, Tourmaline, Chrysolite, Spinel, Zircon (Hyacinth), Chrysolite 

 (Peridot), Adularia (Moonstone), Opal, Amethyst, Kunzite, Amber, Pearls.) 

 In one case a varied collection of semi precious or ornamental ston< 

 shown, many of which are experimental efforts to use mineral material 

 which can never have any very extended use, viz., prehnite, titanite, sphal- 

 erite, hematite, cyanite, etc., etc. 



Handsome wall case specimens of large size line the sides of the Gem 

 room, among which the Azurite, Malachite, Quartz, Amethyst, Gypsum 

 and Tourmaline are pre-eminent for size or beauty. 



SOUTHWEST WING 



Minerals 



Xext beyond the Gem Hall is the Southwest ]Ying or Hall of Minerals. 



At the entrance to the hall is a case in which recent acquisitions are placed. 



The general collection of minerals consists chiefly of the 



emen well-known Bement Collection which contains specimens 



Collection . . ' _ . 



of Minerals representing species ot the known minerals ot the world. 



Not only is the collection noted for its numbers, but in many 

 instances the beauty and size of the individual specimens are quite unsur- 

 passed in other collections. 



The more attractive specimens are displayed in cases arranged down 

 the center of the room. The remainder of the collection is arranged ac- 

 cording to the classification of minerals. In the first cases on the right or 

 left are models of the six systems of crystals and other introductory illustra- 

 tions of the physical and optical properties of minerals. Each mineral has 

 a characteristic form of crystallization w r hich is one of the means of identify- 

 ing it. The distribution of the more important minerals is indicated on 

 maps. 



SOUTHWEST PAVILION 



Collections from the Pacific Islands 



Entering the Southwest Pavilion beyond the Hall of Minerals the visitor 

 will find specimens pertaining to the natives of the Pacific Islands. The 

 wall cases contain examples of w T ar implements, tapa or bark cloth, sacred 

 masks, boomerangs and armor. 



