INDEX

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Frank Bertram Wade
  • Balances, Care and use of, 283-293
  • Beryl, 84, 143, 190
  • Bibliography, 301
  • Bloodstone, 172
  • Blue diamonds, 91
  • Blue-white diamonds, 91
  • Brazilian diamonds, 182
  • Brilliancy, 203
  • Brilliant cut stones, 233
  • Brilliant, Theory of the, 205
  • Brittleness of gems, 119
  • Brown stones, 95
  • Bubbles in gems, 103
  • Bubbles in glass, 81
  • Bubbles in scientific stones, 103
  • Burmah rubies, 154

  • Fancy diamonds, 91, 151
  • "Fire," cause of, 207
  • Forms of precious stones, 227-236
  • Imitations of precious stones, 237-249
  • Imitations of pearls, 277-282
  • Imperfections, 111
  • Imperfections in corundum gems, 101
  • Imperfections in glass, 81
  • Imperfections in scientific stones, 104

  • Reflection, total, 204
  • Refraction, 4
  • Refraction, double, 8-13
  • Refraction, double, test for, 10, 112
  • Refractometer, 5
  • Rhodolite garnet, 168
  • "Roman" pearls, 279
  • Rose cut stones, 231
  • Rose quartz, 171, 197
  • Rubellite, 93
  • Ruby, 12, 67, 69, 153, 154, 186
  • Ruby, scientific, 99-108
  • Unit of weight, 289
  • Variscite, 148
  • Vitreous luster, 41
  • Wearing qualities of gems, 119

Diamonds

A Study of the Factors that Govern
their Value

By

Frank B. Wade

"I shall speak a little more of the diamonds, that they who know them not may not be deceived by chapmen who go through the country selling them, for whoever will buy the diamond, it is needful that he know them, ..."—Chap. XIV., The Voyages and Travels of Sir John Maundeville.

Table of Contents

I.— Colour.
II.— Flaws.
III.— "Make."
IV.— Repairing and Recutting.
V.— Mounting.
VI.— Buying the Engagement Ring.

G. P. Putnam's Sons

New York London

A Book of Precious Stones

The Identification of Gems and Gem Minerals and an Account of Their Scientific, Commercial, Artistic, and Historical Aspects

By Julius Wodiska
8vo. With 33 Full-page Illustrations and 4 Colored Plates

A description, in altogether a new fashion, of gems and gem minerals, their nature and history, comprehensible to every reader, and of prime value to students and to jewelers.

The general reader will enjoy the simple descriptions of the origin, development, and treatment of the diamond, sapphire, and other precious stones, as well as of the beautiful semi-precious stones. Just enough of the technical has been provided to make the new gem book a vade mecum for students of gem minerals and for the army of jewelers in the United States, as well as their fellow-craftsmen and merchants in all English-speaking places. The art and industry of mounting gems is somewhat elaborately covered, especially as exemplified in the work of students at technical schools and the many unattached workers in jewelry designing and making who form a part of the Arts and Crafts movement. Some of the quaint superstitions about gems in the chapter on folklore have a curious interest. The author takes cognizance of the public desire nowadays for the novel and uncommon in gems, and shows that prospectors, gem miners, mineralogists, and jewelers are co-operating to greatly lengthen the lists of popular semi-precious stones. A chapter is devoted to collections of gems in museums.

G. P. Putnam's Sons

New York London

Transcriber's Note: Inconsistent hyphenation and spellings have been standardised, although consistent variants remain as printed. Minor typographical errors have been corrected without note, whilst significant changes are listed below.

p. 13, 'indentity' amended to identity:
'... of unknown identity comes along ...';

p. 20, 'dischroism' amended to dichroism:
'... but shows hardly any dichroism.';

p. 67, 'quart' amended to quartz:
'... (quartz topaz) ...';

p. 118, 'Saphire d'eau' amended to Saphir d'eau;

pp. 140, 143, 'berylium' amended to beryllium;

pp. 148, 318, 'Varicite' amended to Variscite;

p. 157, 'Csar' amended to Czar:
'... Czar Alexander II., in whose ...';

p. 167, 'rubelite' amended to rubellite:
'... sometimes called "rubellite," and white ...';

p. 190, 'Minas Garaes' amended to Minas Geraes;

p. 199, 'Khorassan' amended to Khorasan:
'... province of Khorasan in Persia ...';

p. 227, 'caboch' amended to caboche;

p. 258, 'uniomargarifer' amended to Unio margaritifera;

p. 298, 'mechandise' amended to merchandise:
'... tax on imported merchandise ...';

p. 301, 'Emanual' amended to Emanuel:
'... Diamonds and Precious Stones, by Harry Emanuel ...';

p. 301, 'Hatten' amended to Hotten:
'... John Camden Hotten ...';

p. 308, 'Streetor' amended to Streeter:
'Precious Stones and Gems by Edwin W. Streeter ...';

p. 314, 'Epidot' amended to Epidote.

*******

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