In “Pyrometry: A Practical Treatise on the Measurement of High Temperatures,” Charles R. Darling presents a comprehensive exploration into the methodologies and applications of pyrometry, the science of measuring high temperatures. This treatise synthesizes technical precision with practical insights, showcasing a rich blend of theoretical underpinnings and hands-on experimentation. Darling delves into various pyrometric techniques, ranging from optical methods to thermoelectric principles, while emphasizing the critical role of high-temperature measurements in industrial and scientific contexts, thus situating his work within the broader framework of 19th-century thermodynamics and engineering advancements. Charles R. Darling, recognized for his contributions to thermometry and industrial measurement technologies, draws upon his extensive background in engineering and applied physics to inform this crucial text. His career, intertwined with the burgeoning field of heat measurement, has equipped him with a profound understanding of the principles at play. Darling'Äôs commitment to enhancing the precision of thermal measurements is evident throughout the book, as he addresses both the challenges and innovations that defined his era. For scholars, engineers, and practitioners alike, “Pyrometry” offers invaluable knowledge that is as relevant today as it was upon its publication. Darling'Äôs treatise not only serves as an essential resource for mastering the intricacies of high-temperature measurement but also stands as a testament to the scientific rigor and industrial relevance of his time. This book is a must-read for anyone seeking to deepen their understanding of thermal measurement technologies.