Syl 
166. QUARTZ, Crystal Balls, Yenagari, Japan. Suite illus- 
trating method of manufacture. Collected by Prof. Egleston. 
167. QUARTZ, Tapering Crystals, Kimpo, Japan. Collected by 
Prof. Egleston. 
168. SODALITE AND SECTIONS, Africa, Asia, and Canada. 
New localities described by L. McI. Luquer. 
169. TELLURIUM CRYSTALS (artificial). Produced in Kiln 
Roasting at Argo, Colorado. 
170. TOPAZ, Japan. Collected by Prof. Egleston. Described 
by W. D. Matthew. School of Mines Quarterly, XIV. 53. 
171. WAVELLITE ON PHOSPHATE ROCK, Marion Co., Florida. 
Described by A.J. Moses and L. McI. Luquer. School of 
Mines Quarterly, XIII. 238. 
172. WOLLASTONITE, Harrisville, N. Y. Described by Hein- 
rich Ries. 
173. APPARATUS FOR SEPARATING MINERALS OF HIGH 
SPECIFIC GRAVITY, constructed by Heinrich Ries after 
description by O. A. Derby. 
174. CHART OF REACTIONS ON CHARCOAL AND PLASTER 
WITH THE BLOWPIPE. Painted by H. P. Whitlock. 
175. REFLECTION GONIOMETER, not needing darkened room. 
Devised by Ernest Mallard and described in Axnale des 
Mines S: 8; t. XII. 
Nos. 149 to 175 inclusive, exhibited by the Mineralogical 
Department of Columbia College. 
176. ROSE GARNET, Xalostoc, Mexico. Exhibited by William 
Niven. 
177. STALACTITES TINTED BY MALACHITE, Copper Queen 
Mine, Bisbee, Arizona. Exhibited by Thomas R. Sorin. 
178. PYROPHYLLITE, N. C., tinted by decomposing pyrite. 
179. CALCITE WITH ENCLOSED PHANTOM CRYSTAL, Egre- 
mont, England. 
