History of Science Collection

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De subtilitate libri XXI
nvnc demvm ab ipso auctore recogniti atque perfecti., Title within historiated border., Head and tail pieces; initials; side notes., "XI calendas Maij, anno M.D.L.II. Lutetiæ, in itinere"--Dedication., Among the inventions described in this work are a telegraph, a combinatory alphabet lock, etc., Includes index., Manuscript notes on front and back covers and fly leaves.