Designed for advanced undergraduate and graduate engineering courses in modern boundary-layer theory, this frequently cited work offers a self-contained treatment. The text explores theories for treating laminar and turbulent boundary layers of reacting gas mixtures, developing all theories from fundamentals and providing thorough descriptions of all related chemical, thermodynamic, and physical concepts. AUTHOR: William H. Dorrance was Senior Staff Scientist at the Convair Scientific Research Laboratory and Head of the Gas Dynamics Department of the Aerospace Corporation.