L1NNEA>- SOCIETY OF LONDOX. §9 



am Pflanzenkurper,' 1892 ; ' Einfluss des Lichtes auf der BliitUen,' 

 1S93; 'Bliithen-Anomalien,' 1898; ' KnollengeAyachse, 18J9 , 

 ' Anatomie uud Patholo-ie des Pflanzeukorpers 1908. 



The writer twice met Prof. Vochtin--ouce when lie spen - some 

 tnne in London, and more recently when he came over in 1 JOJ to 

 receive the honorary degree of 8c.D. at the Darwui Celeb- on 

 at Cambridc^e in 19u9. The recollection will always be retained 

 of a charming and unassuming personality, with the gladness of a 

 child and the wisdom of an old man; the great war brought 

 sadness to him, two of his sons being kiUed m action. llis 

 election as a Foreign Member was comparatively recent namely 

 on the 1st May, 1913. L^^. -U.J.J 



Julius ton Wiesneu died in October 1915, and was buried on 

 the 12th of that month. He was born on the 20tb January, 

 1838, the yoimgest of a family of eight, at Tscheschen in Moravia, 

 whence the familv removed to Briinn when the subject of our 

 memoir was quite young. Prom 1849 he was at the Gymnasium at 

 Briinn when Mendel was teaching from 1854-1868 ; he sett ed in 

 Vienna in 1858, and here among his teachers were lenzl, Uuger, 

 and Ettingshausen. At the age of 22, in the year IbbO he took 

 ti.edecrreeof Ph.D. at Jena, became extraordinary Professor of 

 Physiological Botany in 1868 at the Polytechnic Institute in 

 Viennn, and two vears later, full Professor at the lorest Institute 

 at Mariabrunn, followed in 1873 by his appointment as Professor 

 of Anatomy and Physiology of Plants at Vienna University, and 

 from ]880 he withdrew from teaching at the Polytechnic so that 

 he mioht concentrate his efforts on his work at the University, 

 where"" he was destined to devote 36 unbroken years; then, in 

 consequence of attaining the age limit, in 1909 he retired 



Amongst his best known works may be mentioned Die 

 Eohstofte des Pflanzenreiches,' Leipz.g, 18/3, ed. 2, 1900 ; Uie 

 Enstehung des Chlorophylls,' Wien, 1878; /Das Bewegungs- 

 vermo'^en der Pflanzen ; eine Kritische Studie uber das gleich- 

 nami<^eAVerk von C. Darwin,' 1881 : ' Elemente der Anatomie 

 und Physiolo-ie der Pflanzen,' which attained a tilth edition in 

 1906- whilst his researches on the influence of gravity on leaves, 

 autumnal leaf-fall, the conservation of chlorophyll and the 

 action of light on plants, etc., are well known and j^PP^'eci^ited. 



He was elected a Foreign Member on the 1st May, 1902 ; he 

 WIS happy in having a fortunate youth, a quick and successful 

 career, sound health, long life hardly touched by care, an ample 

 output of scientific work, preserving throughout an optimistic 

 ^ ^D. D. J .J 



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