Gems and gem materials
By: by Edward Henry Kraus ... and Chester Baker Slawson ...
Contributors: Slawson, Chester Baker, 1898- joint author.
Edition: 3d ed.
Publisher: McGraw-Hill book company, inc.
Published: 1939
Place of publication: New York; London
Language: eng
Number of pages: 287
Subjects: Precious stones
Notes: "The first edition was prepared with the collaboraion of Dr. Edward Holden, who died before the book came from the press. The senior author was alone responsible for the second edition. In this, the third, edition he has been assisted by Dr. Chester B. Slawson, as the junior author."--Pref. by Dr. Kraus.