33 
The Water Balance of Desert Plants, 15 minutes......... D. F. MacDougal 
Disease Resistance in Varieties of Potatoes................... C. R. Orton 
The Laboratory Method of Determining the Fungicidal 
7 Value of Spraying Mixtures, 10 minutes................. L. R. Hessler 
ihey black knoor Blum) lO minutes as cic es ae esis sees elle H. L. Rees 
Additions to the Indiana Flora, 3 minutes................Charles C. Deam 
An Hecological Survey of the Lower Whitewater Gorge, 15 
TNT UEC S ets cae tena pa wllenters a! ai“an 1s. ah wares cheater M. S. Markle and L. C. Petry 
Report of Work on Corn Pollination II, 3 minutes............ M. L. Fisher 
8:00 p. m., Address, illustrated by stereopticon, by Dr. D. T. MacDougal, 
of the Desert Laboratory, Tucson, Arizona. 
[826988] 
