Study No. 4, Solid Mechanics Division, University of Waterloo, Ontario, Canada. Rare volume in excellent condition with blue cloth hard covers, gilt titles on the front and spine, no inscriptions, tight binding. The unclipped dust jacket has some light wear along the top edge and its spine is sunned. A dissertation which develops the bases of a rational theory for reinforced concrete which allows for the effects of all major factors, is consistent throughout all loading stages and is applicable to any normal stress condition. The core of the investigation is the presentation of a stress-strain relationship for concrete which reflects the influence of steel percentages, concrete cover, creep, etc.