No one has done more to clear the way for a free investigation of all questions relating to the origin of printing than Dr. Van der Linde, in his able essay, The Haarlem Legend, The Haarlem Legend of the Invention of Printing by Lourens Janszoon Coster, critically examined. From the Dutch by J. H. Hessels, with an introduction and classified list of the Costerian Incunabula. London, 1871. 8vo. which, while disposing ruthlessly of the fiction of Coster’s invention, lays down the important principle, too often neglected by writers on the subject, that the essence of Typography consists in the mobility of the types, and that, therefore, it is not a development of the long practised art of printing from fixed blocks, but an entirely distinct invention.

The principle is so important, and Dr. Van der Linde’s words are so emphatic, that we make no apology for quoting them:―