BIOGRAPHIC 125 



Jackson, B. D.: Harry Marshall Ward, Proc. Linn. Soc, London 

 119 : 54-57, 1907. 



Johnson, T.: H. Marshall Ward, Ber. Deut. Bot. Ges., 26a • riO)-n2) 

 1909. ^ ' \ h 



Thiselton-Dyer, W. T.: Harry Marshall Ward, 1854-1906, Proc. Roy. 

 Soc, London, B : 83 : 1-XIV, 1911; see also New Phytol., 6 : 1-9, 

 1907; and Makers of British Botany by Oliver, pp. 262-279, 1913. 

 (Portrait.) 

 Vines, S. H.: Professor H. Marshall Ward, Nature, 74 : 493-495, 1906; 

 see also, Ann. Bot., 21 : IX-XIII, 1907; and, Bot. Centralbl., 102 ' 

 367, 368, 1906. 

 Anonymous: Two leaders in science, Gard. Chron., 3 : 40 : 164, 1906. 

 Weigmann, Arend Joachim Friedrich 

 No published biography of Wiegmann has been found. The following 

 facts have been gathered from several sources, but chiefly from a 

 seminary paper presented by Charles Chupp before the department 

 of plant pathology of Cornell University in 1913. A copy of this 

 paper is to be found in the library of Cornell University. Wiegmann 

 was born 1771; died 1853 in Braunschweig. He was examined for 

 assistant chemist by the Imperial College in Braunschweig in 1795, 

 and appointed associate pharmacist to the chief apothecary there. 

 From 1821 on he lived as a private druggist in Braunschweig, but 

 having taken his medical degree in 1827, he was appointed to a pro- 

 fessorship there. He began his studies in plant pathology in 1798, 

 his first contribution in this field being apparently his, Versuch einer 

 Krankheitslehre der Gewachse, which appeared in the first three 

 volumes of Sprengel's, Land- und Forstwissenschaftliche Zeitschrift, 

 which formed the basis of his text-book issued in 1839 (see footnote 

 1, p. 37). He also interested himself in, and wrote papers on, plant 

 hybridization; the nature and origin of peat; and the inorganic 

 constituents of plants. The following references give some few 

 facts regarding him: Ascheron, P., and Graebner, P., Synopsis der 

 Mittel-Europaischen Flora, 6:2: 1086, footnote, 1910; Flora, 

 36 : 288, 1853; Bot. Zeit. 11 : 279, 280, 1853. A fine lithograph 

 portrait is to be found in the Van Kaathoven collection of medical 

 men in the library of the Surgeon General's office, Washington, D. C. 

 WoTonin, Michael Stepanovitch 



Famintzin, A. S.: M. S. Woronin (Nekrolog), Trav. Imp. Soc. Nat., 



St. Petersburg, 34 : 210-222, 1903. (Portrait.) In Russian. 

 Nawaschin,S.: Michael Woronin, Ber. Deut. Bot. Ges., 21 : (35)-(47), 



1903. 

 Smith, Erwin F.: Woronin, Phytopath., 2 : 1-4, 1912. (Portrait.) 



