Martin Luther: Student of the Creation

Photograph of John Ling's ex-WD 6 wheel Scammell tractor - EET715, taken Forest site, 1 October 1962 side and front view

Review of \u3cem\u3eThe Global Luther: A Theologian for Modern Times\u3c/em\u3e

The article reviews the book The Global Luther: A Theologian for Modern Times edited by Christine Helmer

Optical Mineralogy

This resource is a 43 page pdf document on the principals of optical mineralogy. Topics include light, the polarizing light microscope, the refractive index, optical classes and indicatrix theory, the relationship of optical properties to crystal chemistry, and advanced methods in optical mineralogy. The website features both text and figures. Educational levels: Graduate or professional, Undergraduate lower division, Undergraduate upper division