126 MINERALS 



A i)artial graduation in importance and value is obtained by the 

 arrangement of the gems, beginning with Diamond at the extreme south 

 and passing north, case l)y 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 stones is shown, many of which are experimental efforts 

 to use mineral material which can never have any very extended use, 

 viz., prehnite, titanite, sphalerite, 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 preeminent for size or beauty. 



SOUTHWEST WING 

 Minerals 



Next beyond the Gem Hall is the Southwest Wing 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 

 Collect" chiefly of the well-known Bement Collection which con- 



of Minerals tains specimens representing species of the known minerals 

 of 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 unsurpassed in other collections. 



The more attracti^■e specimens are displayed in cases arranged down 

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

 according the classification of minerals. In the first cases on the right or 

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

 illustrations of the physical and optical properties of minerals. Each 

 mineral has a characteristic form of crystallization which is one of the 

 means of identifying it. The distribution of the more important 

 minerals is indicated on maps. 



SOUTHWEST PAVILION 



Collections From the Pacific Islands 



On entering the Southwest Pavilion beyond the Hall of Minerals 

 the visitor faces groups representing the natii'es of the Pacific Islands. 

 Directly in front is a Tahitian priest taking part in the fire-walking 

 ceremony, in which the participants walk over heated boulders of lava. 



On either side are groups engaged in grating cocoanut, making 

 kava, and weaving mats for a house. 



