The Correlation and Conservation of Forces; A Series of Expositions, by Prof. Grove, Prof. Helmholtz, Dr. Mayer, Dr. Faraday, Prof. Liebig and Dr. Carpenter. With An introduction and Brief Biographical Notices of the Chief Promoters of the New Views, by Edward: Buy The Correlation and Conservation of Forces; A Series of Expositions, by Prof. Grove, Prof. Helmholtz, Dr. Mayer, Dr. Faraday, Prof. Liebig and Dr. Carpenter. With An introduction and Brief Biographical Notices of the Chief Promoters of the New Views, by Edward by Youmans Edward Livingston at Low Price in India