LEONHARD FUCHS NEUMANN". 639 



published in volume 23 of the Centralblatt fiir praktische Augen- 

 heilkunde * an exact reprint of what seems to be a German transla- 

 tion of the Latin edition of 1538. The book is entitled : Alle Kranck- 

 heyt/der Augen durch den hochge/lerten Doctor Leonhard fuchsen 

 zu Onoltz/bach zusammen gezogen alien augen/artzten hochnottig 

 zu/wissen. Getruckt zu Strassburg durch Heinrich Vogtherren 

 Anno/MDXXXIX. 



The reprint is preceded by a brief historical introduction , in which 

 Doctor Pergens quotes the Latin edition, according to Ploucquet (that 

 Haller had mentioned it first had escaped him), and then presents a 

 history and description of the German copy. Doctor Pergens had 

 found the work in the Bibliotheque Royale at Brussels. The book 

 contains an illustration on the reverse of the title-page, reproducing a 

 figure of the eye with a part of the chiasm. (Plate 2.) Whether this 

 illustration is an original one, Doctor Pergens does not decide ; three 

 years later this illustration was reproduced by Jakob Ryff in his 

 Kleinere Chirurgie, Strassburg, 1542. The copy found in Brussels by 

 Doctor Pergens is not the only one. Prof. Julius Hirschberg, of 

 Berlin, found another copy in the Koenigliche Bibliothek in Berlin, 

 and I myself was so fortunate as to find still another copy enumerated 

 in catalogue No. 319 of K. F. Kohler's Antiquarium, Leipzig, 1879, 

 No. 28. Perhaps this copy is identical with one of the copies in the 

 libraries mentioned. 



Doubt of the authorship and criticism of the scientific value of the 

 German edition are not expressed by Doctor Pergens. The question 

 of the authorship of the German edition and the question of the ex- 

 istence of the Latin edition is taken up by Professor Hirschberg 2 in 

 his Geschichte der Augenheilkunde. Stimulated by Doctor Pergens' 

 article and by the reprint of the German edition, he made a thorough 

 search for the Latin edition in all the German libraries, but without 

 success. Not discouraged, Hirschberg carefully examined the chief 

 medical work by Leonhard Fuchs, Institutiones medicinae, and his 

 labor was not in vain. He found in Liber III, sectio I, capitulum xii : 

 " Vitiorum oculi succincta explicatio," the original of the so-called 

 German edition, ".but," he adds, "without the ridiculous mistakes 

 and without the ill-fitting therapeutic interpolations, and, of course, 

 without the supplement which consists of prescriptions." Hirsch- 

 berg is completely convinced that the German edition was not written 

 by Fuchs. From internal evidence he takes it for granted that Jorg 

 Vogtherren, and Conrad and Bartholomaeus Vogtherren, relatives 

 of the printer Heinrich Vogtherren, are responsible for the book, 



1 Leonhard Fuchs* alle Kranekheydt der augen (1339), neu horausgegeben von Dr. Ed. 

 Pergens (Briissel), p. 197-203; 231-238. 



2 Hirschberg, Julius. Geschichte der Augenheilkunde. 2. Aufl. II. Bd. S. 316-319. 

 Leipzig, W. Engelniann, 1908. 



