This the first book to describe the system of weights and measures used in medieval Scotland and to explain its evolution into modern times, and also the first to provide secure and accurate figures for the sizes of the units. The book's radical approach includes an emphasis on the physical evidence from surviving measurement standards, and it demonstrates that Scotland's meteorology was sophisticated and was closely involved with those of her trading partners. The book will appeal to a specialist market that includes social, economic and science historians; Scottish historians; weight and scale collectors; museums; and science and technology libraries.