41 



*Notes oil the Relation of the Native Vegetation to Surface Geology 



as Observed in Indiana. Bj- title C. W. Shannon 



*The Mansfield Sandstone Area of Indiana. P.y title C. W. Shannon 



Remarks on the Value of Core Drilling in Regions of Questionable 



Stratigraphic Succession. 10 m J. W. Beede 



The Determination of Hydrogen, Methane and Nitrogen in <ias by 



Combustion in Quartz Tube. 2 m F. C. Mathers and Ira I>ee 



New Methods for the Prei>aration of Selenates. 2 m 



F. Mathers and J. Otto Frank 



A New (Qualitative Test for Chlorides in the Presence of Bromides 



and Iodides. 2 m F. C. Mathers and Ira Lee 



Electroplating in Colloidal solutions. 10 m .Tam(>s K. Weyant 



EVENING SESSION, 8:1.") p. M. 



The Photography of Sound Waves. Lantern. 20 m A. I^. Foley 



A Brief Account of the Indiana University Expediticm to Cdlnniliia. 



Lantern. 30 m C. IL Eigenmann 



Papers not Read at the Previous Sessions. 



