The Priestleys in America, 1794-1804 is a fascinating book written by Edgar Fass Smith. It tells about an important period in the life of the famous English chemist and physicist John Priestley, when he was in the United States of America from 1794 to 1804. During this period, Priestley was actively involved in scientific activities, studying the natural sciences and developing new ideas. The author describes in detail not only Priestley's scientific activities, but also his personal life, relationships with colleagues and influence on the scientific world of that time. The book is an important source for understanding the work of one of the outstanding scientists of the 18th century and the context in which he lived and worked. "Priestley in America, 1794-1804" is a must-read for anyone interested in the history of science and the biographies of prominent figures.