This collection of letters was first published in 1990, and provides, therefore, invaluable insight and information for a period of major historical importance.

In this groundbreaking two-volume textbook first published in 1867, Lord Kelvin and Peter Guthrie Tait offer a unified scientific explanation of the physical world through the laws of energy.

This book is a must-read for students of science and history alike. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations.

An abridgement of their original Treatise on Natural Philosophy, this work was designed to be accessible to students with a basic knowledge of algebra, geometry, and trigonometry.

He is best known through the Kelvin, the unit of measurement of temperature named after him in consequence of his development of an absolute scale of temperature. These volumes collect together Kelvin's lectures for a wider audience.