123 
Charles Herbert Otis: ‘“’lranspiration of emersed water 
plants; its measurement and its relationships.” 
UNIVERSITY OF PENNSYLVANIA 
Thomas Franklin Manns: “Some new bacterial diseases of 

legumes and the relationships of the organisms causing the 
same.” . 
Renee Whittier Pennell: “Studies in the Agalinanae, 
sub-tribe of the Rhinanthaceae.” 
Jacob Joseph Taubenhaus: “Diseases of the sweet pea.” 
aS 
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UNIVERSITY OF WISCONSIN 
Irving E. Melhus: “Germination and infection in certain 
Oomycetes.” WASHINGTON UNIVERSITY 
Jacob Richard Schramm: “A contribution to our knowledge 
of the problem of free nitrogen fixation in certain species of 
grass-green algae with special reference to pure culture 
methods.” 
Mildred Webster Spargo Schramm: “The genus Chlamydo- 
monas.” 
Charles Oscar Chambers: ‘The relation of Algae to dis- 
solved oxygen and carbon dioxide with special reference to car- 
bonate.” University of MINNESOTA 
Elvin Charles Stakman: “A study in cereal rusts: physio- 
logical races.” University oF NEBRASKA 
Raymond John Pool: “A study of the vegetation of the 
sandhills of Nebraska.” 
TULANE UNIVERSITY 
Eleanor Elmire Reames: “On iiecrawater Chlorophyceae 
and Cyanophyceae of southern states.” 
Although not strictly botanical, the following theses deal 
largely with plants from a chemical standpoint. All three were 
presented at the University of Wisconsin. 
William Harold Peterson: “Forms of sulphur in plants.” 
Roy Lee Primm: “Some phenomena associated with cell- 
ulose fermentation.” 
Nellie Antoinette Wakeman: “Plant pigments other than 
chlorophyll.” E. W. O. 
