18 
UNIVERSITY OF PENNSYLVANIA 
John Young Pennypacker: “Observations on the beach plum: 
a study in plant variation.” 
David Walter Steckbeck: “ Comparative histology and irrita- 
bility of sensitive plants.” 
Heber Wilkinson Youngken: “The comparative morphology, 
taxonomy and distribution of the Myricaceae of the eastern United 
States.” 
WASHINGTON UNIVERSITY 
Alva Raymond Davis: “Enzyme action in the marine algae.” 
William Harrison Emig: “ The occurrences in nature of certain 
fungi pathogenic for man and higher animals.” 
Joseph Charles Gilman: “‘ Cabbage yellows and the relation of 
temperature to its occurrence.” 
Melvin Clarence Merrill: “ The electrolytic determination of 
exosmosis from the roots of plants subjected to the action of 
various agents.” 
Lee Oras Overholts: “ Comparative studies in the Polyporaceae.” 
INDIANA UNIVERSITY 
Fermen Layton Pickett: “ Arisaema triphyllum: a biological 
study.” 
UNIVERSITY OF NEBRASKA 
Richard Hans Boerker: “ Ecological investigations with certain 
forest trees.” 
Clarence Jerome Elmore: “The diatoms (Bacillarioideae) of 
Nebraska.” 
CATHOLIC UNIVERSITY 
Daniel Da Cruz: “A contribution to the life history of Liliam 
tenuifolium.” 
Be WO; 
NOTES 
Thirteen bids were received by the Board of Park Commission- 
ers on October 28, 1915, for the completion of our laboratory 
building and plant houses. The lowest bidders for general con- 
struction were Frymier & Hanna, $140,228.00, for heating and 
ventilating, Adams Britz Company, $16,928.00, and for plumb- 
