"Effect of Scale on the Transmission of Heat Through Locomotive Boiler Tubes" explores a critical aspect of early 20th-century locomotive engineering. Authored by Edward C. Schmidt and J.M. Snodgrass, this work delves into the impact of scale buildup on the efficiency of heat transfer within locomotive boiler tubes. It offers valuable insights into the challenges faced by engineers in optimizing steam engine performance. This study remains relevant for those interested in the history of mechanical engineering, thermodynamics, and the development of railway technology. The findings presented contribute to a deeper understanding of the factors influencing the operation and maintenance of steam-powered locomotives.