ACKNOWLEDGMENTS
Pascal Petite granted permission for use of the historic postcard images and data from the website http://www.inventaires-ferroviares.fr where they may be viewed. This website attempts to list and document all French railways. Additional permissions to use postcard photographs were given by Mindat.org representing the postcard photographs provided by Michael Arliguie and Gunter Grundman. Permission for the historic specimen photograph was given by Mark Wrigley who manages the website of e-rocks.com. William Besse is appreciated for creating and drawing the basemaps. The manuscript was reviewed by James Nizamoff, John Rakovan, and Malcom Southwood who are appreciated for helping improve the text, which was dominantly created from French-language publications.
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Notes on contributors
Mark Ivan Jacobson
Mark Ivan Jacobson, a consulting editor of Rocks & Minerals, specializes in pegmatites and their histories of exploitation.