The book "The Wisdom of the Body" by Prof. Walter B. Cannon is a clear and engaging account of physiological balance in the human body. It is the fourth in a series of works based on over thirty years of research by Cannon and his colleagues. The book discusses how the autonomic nervous system maintains homeostasis, the internal environment necessary for life. It covers the regulation of water, salt, sugar, proteins, fat, and calcium in the blood, the maintenance of oxygen supply, acid-base balance, and body temperature. The book is written in a simple and accessible manner, making it appealing to both the general public and students of the biological sciences. It also includes chapters on the natural defenses of the organism, the margin of safety in bodily structure and function, and the role of the sympathetic-adrenal system in homeostasis. The book ends with a summary of bodily stabilisation and an epilogue on the relations of biological and social homeostasis. The title is derived from a speech by Prof. Starling and aptly describes the content. The book is a scientific work that reads like a poem. The second book, "Tables of the Planets," provides planetary coordinates for the years 1800–1940, referred to the equinox of 1950.0. It is prepared by the H.M. Nautical Almanac Office and is of interest to astronomers calculating planetary and cometary orbits. The book uses rectangular coordinates, which are simpler and more suitable for machine calculations. The tables include heliocentric longitude and latitude, radius vector, rectangular equatorial coordinates, and rectangular components of the attraction on the sun, for planets from 1920 to 1940, and for Jupiter and Saturn back to 1900, and for Uranus and Neptune to 1903. The book is a valuable resource for astronomers.The book "The Wisdom of the Body" by Prof. Walter B. Cannon is a clear and engaging account of physiological balance in the human body. It is the fourth in a series of works based on over thirty years of research by Cannon and his colleagues. The book discusses how the autonomic nervous system maintains homeostasis, the internal environment necessary for life. It covers the regulation of water, salt, sugar, proteins, fat, and calcium in the blood, the maintenance of oxygen supply, acid-base balance, and body temperature. The book is written in a simple and accessible manner, making it appealing to both the general public and students of the biological sciences. It also includes chapters on the natural defenses of the organism, the margin of safety in bodily structure and function, and the role of the sympathetic-adrenal system in homeostasis. The book ends with a summary of bodily stabilisation and an epilogue on the relations of biological and social homeostasis. The title is derived from a speech by Prof. Starling and aptly describes the content. The book is a scientific work that reads like a poem. The second book, "Tables of the Planets," provides planetary coordinates for the years 1800–1940, referred to the equinox of 1950.0. It is prepared by the H.M. Nautical Almanac Office and is of interest to astronomers calculating planetary and cometary orbits. The book uses rectangular coordinates, which are simpler and more suitable for machine calculations. The tables include heliocentric longitude and latitude, radius vector, rectangular equatorial coordinates, and rectangular components of the attraction on the sun, for planets from 1920 to 1940, and for Jupiter and Saturn back to 1900, and for Uranus and Neptune to 1903. The book is a valuable resource for astronomers.