Conrad was one of the most prolific German writers of the fourteenth century. He wrote over thirty books. His best-known and most widely read work is his "Buch der Natur". According to his own statement he was engaged in writing it in 1349. A Latin work,
De naturis rerum, of the
Dominican Thomas of Cantimpré (d. 1263), served as model. Conrad, however, prepared his book with considerable freedom; much of the original was omitted, his own observations were introduced, corrections were made, and so on. His work gives a survey of all that was known of natural history at that time and is, besides, the first natural history in the German language. It was widely read up to the sixteenth century, and numerous manuscript copies of it are still extant, eighteen being at
Munich. The first printed edition with a date is of 1475, and was issued at
Augsburg from the shop of Hans Bämler, under the title of "Puch der Natur". It was printed at least six times before 1500; some of the editions were illustrated, all are now rare incunabula. A new edition of the original text was issued by Franz Pfeiffer (Stuttgart, 1861), with an introduction; an edition in modern German was edited by H. Schulz (Greifswald, 1897). The work has eight chapters • the nature of man • sky, 7 planets, astronomy and meteorology • zoology • ordinary and aromatic trees • plants and vegetables • invaluable and semi-precious stones • 10 kinds of metals • water and rivers. Of Conrad's numerous other writings there should be mentioned: • the "Sphære" 'Spheres', a small compendium in German of
astronomy and
physics, prepared from the Latin work of
Joannes Sacrobosco • some poems, including "Planctus ecclesiæ in Germania" (1337) • a
hymn in praise of the Virgin • a work on morals, "Speculum felicitatis humanæ" 'mirror of human happiness' (1348) • "De erroribus Begehardorum et Beguinarum" 'about the errors of
Beghards and
Beguines' • "De translatione imperii" (1355) on the
translatio imperii, i.e. 'succession' of empires • the large work "Oeconomica", written between 1353 and 1363 • "Tractatus contra mendicantes ad Papam Urbanum V" 'treatise against mendicant (order)s addressed to
Pope Urban V • several
biographies of saints • some historical treatises, chiefly dealing with the local history of Ratisbon. In his writings Conrad shows himself to be a strong adherent of the pope, an opponent of the philosophy of
Occam, and a stern critic of the moral failings of his age and of the clergy. == See also ==