The book ""Theories Of Energy"" was written by Horace Perry in 1918. The book is a comprehensive study of the various theories of energy that were prevalent during the early 20th century. The author begins by discussing the concept of energy and its importance in the physical world. He then goes on to explore the different theories of energy that were proposed by scientists such as James Clerk Maxwell, Hermann von Helmholtz, and William Thomson.The book covers a wide range of topics related to energy, including the laws of thermodynamics, the conservation of energy, and the different forms of energy such as mechanical, electrical, and chemical. The author also discusses the role of energy in various natural phenomena such as heat, light, and sound.Throughout the book, the author provides detailed explanations of the different theories of energy and their implications for our understanding of the physical world. He also includes numerous examples and illustrations to help readers better understand the complex concepts being discussed.Overall, ""Theories Of Energy"" is an important historical work that provides a fascinating insight into the development of our understanding of energy during the early 20th century. It is a valuable resource for anyone interested in the history of science or the fundamental principles of energy.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.