Note 132 — Chapter XII · Globes and Globe Makers of the First Half of the Eighteenth Century—from Delisle to Ferguson

Zedler, J. H. Groses universallexikon aller Wissenschaften und Kunste. Leipzig-Halle, 1745. Vol. 46, p. 153; Günther, Erd- und Himmelsgloben, p. 107, n. 1, reports that two of his Atlases, one of which is a particularly fine example of work representing astronomical geography, may be found in the K. Hof und Staatsbibliothek of München. More than one hundred and twenty-five maps of Gerhard and Leonhard Valk are listed by Phillips in his excellent work on Atlases in the Library of Congress. See index.