Hard covered book titled OPTICAL CRYSTALLOGRAPHY by Ernest E. Wahlstrom, Third Printing 1948, 206 pages, cloth bound.

Chapters include:

• CRYSTALLOGRAPHY
• PHYSICAL PROPERTIES
• ELEMENTARY OPTICS
• THE POLARIZING MICROSCOPE
• OPTICS OF ISOTROPIC SUBSTANCES
• MEASUREMENT OF INDEX OF REFRACTION
• THE UNIAXIAL INDICATRIX
• POLARIZATION OF LIGHT
• UNIAXAL CRYSTALS IN PLANE POLARIZED LIGHT
• UNIAXIAL CRYSTALS IN COVERGENT POLARIZED LIGHT
• OPTICAL ACCESSORIES
• SIGN DETERMINATION IN UNIAXIAL CRYSTALS
• BIAXIAL CRYSTALS - THE TRIAXIAL ELLIPSOID
• BIAXIAL CRYSTALS IN CONVERGENT POLARIZED LIGHT
• DETERMINATION OF OPTIC SIGN IN BIAXIAL CRYSTALS
• DISPERSION IN BIAXIAL CRYSTALS
• MICROSCOPIC EXAMINATION OF NONOPAQUE SUBSTANCES

This vintage book is in VG condition. The pages are intact and the binding is tight.  Underlining and notes on a few pages.