THE KUHNIAN PERIOD 51 



tion could be best conducted as a department or faculty of 

 a university rather than in a separate institution. This 

 idea he himself was to be the first to work out in a most 

 practical manner a little later in the University of Halle. 



In the summer of 1856 on the basis of his work in plant 

 pathology Kiihn took his doctorate at Leipzig, and passed 

 the examination for lecturer at the Agricultural Academy 

 at Proskau. After one term there he again returned to 

 the land, taking the management of a large estate near 

 Gross-Glogau in lower Silesia. It was from here in 1858 

 that he published the first edition of his text-book on 

 plant diseases. He remained on this estate until 1862, 

 when he was called to the chair of Agriculture in the 

 University of Halle, to begin his career as a university 

 professor at the age of thirty-seven. Kiihn married at 

 the age of thirty-two and was the father of five children 

 (Wohltman and Holdefleiss, 1905). 



Kuhn's first and only text-book on plant pathology 

 appeared, as has been indicated, in 1858. So great was 

 the demand for it that a second unaltered edition was 

 published the next year. Although he wrote numerous 

 articles on plant diseases from time to time until his 

 death, he contributed more largely along other lines of 

 agriculture. One of his best known works is that on 

 cattle feeding, 1 which, first published in 1861, ran through 

 many editions. 



The full title of Kuhn's book 2 on plant diseases is, 

 Die Krankheiten der Kulturgewachse, ihre Ursachen und 



1 Kiihn, J. : Die zweckmassigste Ernahrung des Rindviehs vom 

 wissenschaftlichen und praktischen Gesichtspunkte, Dresden, 1861. 



2 Kiihn, J.: Die Krankheiten der Kulturgewachse, ihre Ursachen und 

 ihre Verhiitung, pp. I-XXII + 1-312, Berlin, 1858. 



