IOWA ACADEMY OF SCIENCE 
5 
Phylogeny of the Araceae James Ellis Gow 
Aroid Notes James Ellis Gow 
The Grasses of the Uintah Mountains and the Adjacent Region, L. H. Pammel 
Notes on the Flora of Johnson County, Iowa M. P. Somes 
The Physiology of the Pollen of Trifolium Pratense J. N. Martin 
The Comparative Morphology of the Legumes J. N. Martin 
A Preliminary List of the Parasitic Fungi of Boone County, Iowa....H. S. Coe 
A Partial List of the Parasitic Fungi of Decatur County, Iowa. . . J. P. Anderson 
Nitrogen in Rain and Snow. (Second Paper) Nicholas Knight 
The Rock from Solomon’s Quarries Nicholas Knight 
The Electrical Conductivity of Solutions of Electrolytes in Aniline, J. N. Pearce 
Equilibrium in the System; Cobalt Chloride-Pyridine 
J. N. Pearce and Thomas E. Moore 
Segregation of Fat Factors in Milk Production F. B. Hills 
The Osmosis of Optical Isomeres A. R. Johnson 
Observation on the Specific Heat of Milk and Cream. .. .Johnson and Hammer 
The Use of the Rayleigh Disk in the Determination of Relative Sound 
Intensities Harold StiJ.es 
A New Design for Specific Apparatus ' Johnson and Hammer 
A Proposed Method for Determining the Ratio of Congealed to Uncon- 
gealed Water in Frozen Soil Johnson and Ray Smith 
Iowa Cretacic Sequence Charles Keyes 
Terradal Differentiation of Devonic Succession in Iowa Charles Keyes 
Possible Occurrence of Tertiary Deposits East of the Missouri River. . . . 
Charles Keyes 
Mound and Mound Explorations in Allamakee County...... Ellison Orr 
Wright’s “Ice Age” on the Genesis of Loess B. Shimek 
Notes on the Nebraskan Drift of the Little Sioux Valley in Cherokee 
County S. E. Carman 
The Wisconsin Drift-Plain in the Region about Sioux Falls, South 
Dakota ». S. E. Carman 
Some Additional Evidence of Post-Kansan Drift near Iowa City, Johnson 
County, Iowa ....Morris M. Leighton 
Exhibition of Barograph and Thermograph Tracings of the Omaha 
Tornado John L. Tilton 
The Proper Use of the Geological Name “Bethany” John L. Tilton 
A Pleistocene Section from Des Moines to Allerton near the Iowa-Mis- 
souri Line John L. Tilton 
Preliminary Notes on the So-Called “Loess” of Southwestern Iowa 
James Ellis Gow 
The Limestone Sinks of Floyd County, Iowa A. O. Thomas 
An Electrical Method of Measuring Certain Small Distances, and Some 
Interesting Results F. C. Brown 
