45 
213. OPAL. A curious example from the same locality (Baricoo, 
New Zealand), in which the reticulating cracks in the ironstone 
are filled in with opal. 
214. RUTILATED QUARTZ (Sagenite). The crystals of rutile 
(clove-brown) penetrating transparent quartz are unusually 
dense. The quartz is awater-worn boulder. Madagascar. 
215. RUTILATED QUARTZ (Sagenite). In this example the rutile 
crystals are cinnamon-colored. Madagascar. 
216. DIAMOND CRYSTAL. Elongated hexoctahedron; brilliant 
yellow. From near King’s Mt., North Carolina. Weight, 3 
karat. 
217. DIAMOND CRYSTAL. Curved and elongated hexoctahedron ; 
greenish-yellow. From the glacial drift at Waukesha, Wiscon- 
sin. Weight, 1524 karat. The largest American diamond 
known. 
218. DIAMOND CRYSTAL. Hexoctahedron; white. From glacial 
drift at Oregon, Dane Co., Wisconsin. Weight, 3? karat. 
219. Model of DIAMOND CRYSTAL. Original found, in 1894, at 
Drogiac, Michigan, in glacial drift. Weight, 103 karat. 
Note.—These three diamonds were unmistakably found in 
glacial drift deposits, and hence were evidently derived from 
some deposits, veins, or pockets situated in the north. 
220. EMERALD. Stony Point, Alexander Co., North Carolina. 
This remarkable crystal is one of the largest emerald 
crystals in the world. (See Gems of North America). 
Nos. 212-220 are exhibited by George F. Kunz. ~ 
221. A series of BABYLONIAN AND ASSYRIAN CYLINDERS, SEALS, 
etc., illustrating mineralogical material used for these purposes 
in 4000 to 300 B.C. From the collection of Tiffany & Co. and 
that of the Rev. W. Hayes Ward. 
222. Set of one hundred and seventy sections illustrating the OP- 
TICAL PROPERTIES OF MINERALS and their usual appearance in 
rocks. This set has been prepared for use in the new under- 
graduate course in Optical Mineralogy. 
223. HAND SECTION CUTTER, for cutting small crystals at definite 
angles. 
