| Images 
            from G.B.Agricola, De Re Metallica published in Basel 
            in 1550. The woodcuts are by H.R.M.Deutsch after Blasius Weffring. 
            Here are some characteristic examples of the graphic conventions. 
            Although much of the substance of the work has been superseded, the 
            289 woodcuts are models of book illustration in the cause of information.
 Agricola writes "I have hired illustrators to delineate their 
            forms, lest descriptions which are to be conveyed by words should 
            either not be understood by men of our own times, or should cause 
            difficulty to posterity." The illustrations were so many and 
            so complicated that they delayed the final year of publication.
 The book is probably the earliest to present a body of knowledge on 
            mining from direct and first hand experience. The author makes great 
            play of leaving out anything he has not witnessed himself. Dover Books 
            of New York have published an excellent reprint of the translation 
            as prepared by the future President of the United States, Herbert 
            Hoover and Lou Henry Hoover in 1912.
 
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