This rare and valuable collection is dedicated to the 50th anniversary of the scientific activity of the outstanding chemist and physicist Nikolai Nikolayevich Beketov (1827-1911). The publication is not just an anniversary work, but a full-fledged scientific study, including the key works of Beketov, as well as a detailed list of his scientific works for 1853-1903. ???? Contents of the book: Beketov’s scientific works are devoted to chemical and physical phenomena, substitution reactions and the fundamental laws of chemistry. Works on the interaction of metals and halide compounds (including research on the displacement of elements in chemical compounds). Articles on the principles of thermochemistry and catalysis, on which many subsequent studies were based. Historical essay of Beketov’s activity, his contribution to the development of chemistry and pedagogy. A complete bibliographic list of his works for 50 years. ??? Why buy this book? The unique edition is a rare copy of scientific literature of the turn of the XIX-XX centuries. Historical and scientific value is an important source of information for chemists, historians of science and researchers. Collectible value - the book was published in a limited edition in 1904. There are stamps of libraries