VI11 
CONTENTS. 
Case M. 
Anhydeous Silicates - - - 
Beryl, Aquamarine, Emerald, &c. 
Chrysoberyl „ . - - 
Zircon, &c. - 
Tourmaline « » - - 
Garnet - - - - 
Topaz - - 
Chrysolite, Spinel, &c. - 
Case N. 
Anhydrous Silicates, continued 
Felspars - - - - - 
Lapis Lazuli _ - - - 
Mica - . - - - 
Jade, &c. _ - - _ 
Augite - - - - - 
Hornblende , _ _ - 
Case O. 
Asbestos 
Hydrous Silicates - - - - 
Meerschaum - - _ - 
Serpentine, &c. - 
Steatite, Chlorite, &c. 
Prehnite, Apophyllite, &c. 
Case P. 
Zeolites - - _ - 
Sulphates and Phosphates of Alumina - 
Websterite, &c. - - - - 
Wavellite, Turquois, &c. » - - 
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172 to 175 
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173 
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176 to 180 
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178 
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180 
180 
181 to 185 
181 
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182 
183 
183 to 185 
185 
185 
186 
Addenda 
186 
