American Glass Research, a division of Agr International, Inc., recently continued it’s release of legacy white papers that have been completed throughout the last several decades. This release includes papers from 1959-1961. In 1959, Dr. Richard Mould in collaboration with Mr. Russell Southwick, both of Preston Laboratories (the predecessor and foundation of American Glass Research) prepared two papers entitled « Strength and Static Fatigue of Glass under Controlled Ambient Conditions, Part 1 and 2. » These papers further defined glass strength and how it should be properly measured. Dr. Mould continued the topic with two more papers, Part 3 and 4, in which he further defined critical aspects of glass strength.