"Engineering Bulletin No 1: Boiler and Furnace Testing" by Rufus T. Strohm is a scientific publication released in the early 20th century. This informative document serves as a guide for engineers and technicians involved in the operation and testing of boilers and furnaces, focusing specifically on practical methods for determining their efficiency and performance. The work originates during a period characterized by industrial growth and a heightened awareness of resource conservation in the wake of World War I. In this bulletin, Strohm outlines the crucial need for regular boiler testing to establish how effectively the equipment operates while minimizing waste. He provides detailed procedures for weighing coal and measuring water, steam pressure, and temperature, all essential data for calculating the boiler's efficiency. The text includes step-by-step instructions for conducting these tests and emphasizes the significance of accurate record-keeping and evaluation of results to enhance boiler operation and fuel economy. Overall, it aims to support technicians in achieving maximum production efficiency with minimum waste of fuel in steam-power plants. (This is an automatically generated summary.)