Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 20 (1913) > Annual Issue
Volume 20, Annual Issue (1913)
Front Matter
Title Page - Letter of Transmittal p. i-ii
L. S. Ross
Table of Contents p. x-x
General Interest Article
Proceedings of the Twenty-Seventh Annual Session of the Iowa Academy of Science: Staff & Committee Reports; Program p. 1-6
L. S. Ross and George F. Kay
Research
The Pollution of the Underground Waters with Sewage through Fissures in Rocks p. 1-10
Henry Albert
Tramping in Western Washington p. 11-17
Thomas H. Macbride
The Monterey Conifers p. 25
Thomas H. Macbride
Notes on the Flora of Johnson County, Iowa p. 26-101
M. P. Somes
Sedges of Henry County p. 102-113
John Theodore Buchholz
A Partial List of the Parasitic Fungi of Decatur County, Iowa p. 114-131
J. P. Anderson
The Grasses of the Unitah Mountains and Adjacent Regions p. 132-149
L. H. Pammel
The Diclinous Flowers of Iva ganthiifolia, Nutt p. 150-159
Clifford H. Farr
Phylogeny of the Araceae p. 160-168
James Ellis Gow
The Effect of Smoke and Gases upon Vegetation p. 169-188
A. L. Bakke
Nitrogen in Rain and Snow: Second Paper p. 189-191
Nicholas Knight
The Rock from Solomon's Quarries p. 192-192
Nicholas Knight
Segregation of Fat Factors in Milk Production p. 193-198
F. B. Hills and E. N. Boland
Complete Succession of Iowan Cretacic Terranes p. 199-201
Charles Keyes
Recognition of Beds of Tertiaric Age in Our state p. 202-202
Charles Keyes
Late Devonic Sequence of the Iowa Region (Synopsis) p. 203-206
Charles Keyes
The Proper Use of the Geological Name, "Bethany" p. 207-211
John L. Tilton
A Pleistocene Section from Des Moines South to Allerton p. 212-220
John L. Tilton
Preliminary Note on the So-Called "Loess" of Southwestern Iowa p. 221-230
James Ellis Gow
Notes on the Nebraskan Drift of the Little Sioux Valley in Cherokee County p. 231-235
J. Ernest Carman
The Wisconsin Drift-Plain in the Region about Sioux Falls p. 236-250
J. Ernest Carman
Additional Evidence of Post-Kansan Glaciation in Johnson County, Iowa p. 151-256
Morris M. Leighton
Mounds and Mound Explorations in Northeastern Iowa p. 257-260
Ellison Orr
The Similarity of Electrical Properties in Light-Positive Selenium to Those in Certain Crystal Contacts p. 261-270
F. C. Brown
A Practical Electrical Method of Measuring the Distance Between Parallel Conducting Planes, with Application to the Question of the Existence of Electron Atmospheres p. 271-278
F. C. Brown
The Use of the Rayleigh Disk in the Determination of Relative Sound Intensities p. 279-281
Harold Stiles
An Experimental Investigation of the Relation Between the Aperture of a Telescope and the Quality of the Image Obtained by It p. 282-287
Fred Vorhies
On the Existence of a Minimum Volume in Solution p. 288-288
LeRoy D. Weld
On Certain Points in the Anatomy of Siren lacertina p. 291-294
H. W. Norris
Helpful and Harmful Iowa Birds p. 295-298
Fred Berninghausen
A Further Study of the Home Life of the Brown Thrasher p. 299-304
Ira N. Gabrielson
Nest Boxes for Woodpeckers p. 305-306
Frank C. Pellett
Food Habits of the Skunk p. 307-310
Frank C. Pellett
Additional Mammal Notes p. 311-312
T. Van Hyning
Life History Notes on the Plum Curculio in Iowa: Conotrachelus nenuphar Herbst p. 313-315
R. L. Webster
Color Inheritance in the Horse p. 316-324
Edward N. Wentworth
Some Factors Affecting Fetal Development p. 325-330
John M. Evvard
A Case of Urticaria Factitia Observed in the Coe College Psychological Laboratory p. 331-337
W. S. Newell
Back Matter
Author's Index p. 339-340
