Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,509 pages of information and 233,942 images on early companies, their products and the people who designed and built them.

Thomas Leonard Walker

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Thomas Leonard Walker

1922 M.A., Ph.D., F.G.S., Prof. of Mineralogy, University of Toronto, since 1902. Address: University of Toronto, Toronto, Canada.

See Also

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