| COLOR PLATES |
| PAGE |
| Phenomenal Gems (Gems Exhibiting Phenomena) | Frontispiece. |
| Maharaja Runjit Singh, with Pearls and Gems | 42 |
| Cardinal Farley’s Ring,—Sapphire with Diamonds | 104 |
| Gems from the Morgan-Tiffany Collection | 107 |
| Self-prints of Diamonds, Showing Phosphorescence | 170 |
| Cross, Attached as Pendant to the Crown of the Gothic King Reccesvinthus (649-672 A.D.) | 293 |
| DOUBLETONES |
| Rock-crystal Amulet set in Silver | 10 |
| Rock-crystal Placque, Ancient Mexican | 10 |
| Necklaces from Egypt. First Century | 20 |
| Mosaics of Turquoise and Enamelled Carnelian Beads | 26 |
| Necklaces from Egypt | 37 |
| African Agate Charms | 54 |
| Amber Ornaments | 58 |
| Chalcedony Votive Charm from Mexico | 65 |
| Curious Altar of Powalawa Indians of Arizona | 65 |
| Kabyle Jewelry | 68 |
| Jasper Pendant | 93 |
| Piece of Natural Loadstone for Medicinal Purposes | 93 |
| Aragonite Pendant | 93 |
| Obsidian Mask, from the Fayoum, Egypt | 99 |
| Turquoise Necklace, Thibet | 110 |
| Phoenician Scarab, with Engraved Scorpion | 123 |
| Ancient Babylonian Cylinder Impression, Bearing Figures of the God Nebo and a Worshipper, and Symbols of Sun and Moon | 123 |
| A Small Jade Celt Engraved with Gnostic Inscriptions in the Fourth Century | 123 |
| Moss Agate Mocha Stones, Hindoostan | 132 |
| Agates Used as Votive Charms and Set in Rings | 149 |
| Rock-crystal Ball Penetrated by Crystals of Rutile | 176 |
| Glass Ball, Perforated and Mounted in Metal | 183 |
| Ball of Jet, Perforated and Mounted in Metal | 183 |
| Eye Agate, Showing a Number of Circular Markings | 183 |
| Dr. Dee’s Shew Stone | 190 |
| Obsidian Mirror, with Native Textile String | 190 |
| Rock-crystal Spheres and Natural Cross | 196 |
| Babylonian Cylinders and Persian Beads | 204 |
| Rock-crystal Spheres with Japanese Mountings | 209 |
| Crystal Ball, Supported by Bronze Dragon | 217 |
| Method of Grinding
The Curious Lore of Precious Stones
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