The book "A Study of Certain Methods Used to Determine the Atomic Weight of Cadmium" by John Emery Booker is a study devoted to the study and analysis of the methods used to determine the atomic weight of cadmium. The book examines various approaches, experiments, and calculations that help determine the exact values of the atomic mass of the element cadmium. The author, a well-known chemist and scientist, carefully analyzes and highlights the peculiarities of conducting experiments, calculations and determining the exact values of the atomic weight of cadmium. The book contains important scientific discoveries and techniques used in chemical research. "An Investigation of Some Methods Used to Determine the Atomic Weight of Cadmium" will be a valuable source of knowledge for students, teachers, and anyone interested in the in-depth study of chemistry and the methods of analysis of chemical elements.