Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 21 (1914) > Annual Issue
Volume 21, Annual Issue (1914)
Front Matter
Title Page - Letter of Transmittal p. 1-2
James H. Lees
General Interest Articles
Memorial Note on Seth Eugene Meek p. 11-16
Charles Keyes
Research
Butterflies of Chance Occurrence in Cass County, Iowa p. 347-348
Frank C. Pellett
Sulfofication in Soils p. 17-22
P. E. Brown and E. H. Kellogg
The Des Moines Diphtheria Epidemic of 1912-13 p. 23-31
Chas. A. Wylie
Bacterial Content of Desecated Egg p. 33-49
L. S. Ross
An Incubator Opening to the outside of the Building p. 51-52
L. S. Ross
Comparison of Field and Forest Floras in Monona County, Iowa p. 53-58
D. H. Boot
Notes on a Fossil Tree-Fern of Iowa p. 59-65
Clifford H. Farr
Notes on the Ecology of Iowa Lichens p. 67-75
Zoe R. Frazier
A Preliminary Report on the Flora of Linn County p. 77-99
E. D. Verink
Some Observations on Sycamore Blight and Accompanying Fungi p. 109-114
J. P. Anderson
Weed Survey of Story County, Iowa p. 115-118
L. H. Pammel and Charlotte M. King
Introduced Plants of the Clear Creek Canon, Colorado p. 119-121
L. H. Pammel
Notes on Variation in Micranthes texana p. 123-124
L. A. Kenoyer
Variation in Evaporation in Limited Areas p. 125-126
D. H. Boot
Unusual Dolomites p. 127-128
Nicholas Knight
The Sand of Sylvan Beach, New York p. 129-130
Nicholas Knight
The Electrical Conductivity of Solutions of Certain Electrolytes in Organic Solvents p. 131-160
J. N. Pearce
Equilibrium in the System: Mercuric Iodine and Anilin p. 161-169
E. J. Fry and J. N. Pearce
Some Evidence of Recent Progress in Geology p. 169-172
George F. Kay
Earth Movements and Drainage Lines in Iowa p. 173-181
James H. Lees
Iowa's Great Period of Mountain Making p. 181-192
Charles Keyes
Serial Subdivision of the Early Carbonic Succession in the Continental Interior p. 189-193
Charles Keyes
Our Pre-Cambrian Rocks p. 195-202
Charles Keyes
On the Occurence of Precious Stones in the Drift p. 203-204
Garrett A. Muilenburg
Preliminary Report on Geological Work in Northeastern Iowa p. 205-209
Arthur C. Trowbridge
The Formation of Eskers p. 211-218
Arthur C. Trowbridge
An Area of Wisconsin Drift Further South in Polk County, Iowa, Than Hitherto Recognized p. 219-220
John L. Tilton
Pleistocene Exposures in Cedar Rapids and Vicinity p. 221-224
W. D. Shipton
A New Section of the Railway Cut Near Graf, Iowa p. 225-229
A. O. Thomas
Indian Pottery of the Oneota or Upper Iowa River Valley in Northeastern Iowa p. 231-239
Ellison Orr
Illuminating Power of Kerosenes Used in Iowa p. 241-254
William Kunerth
The Variation of Sound Intensity with Distance from the Source; An Interesting Case of Deviation from the Inverse Square Law p. 255-256
Harold Stiles and G. W. Stewart
Notes on the Construction of Selenium Bridges p. 257-258
E. O. Dieterich
The Adaption of Selenium to Measurements of Energy Too Small to Be Measured by Other Devices p. 259-263
L. P. Sieg and F. C. Brown
Sex-Linked Factors in the Inheritance of Rudimentary Mammae in Swine p. 265-268
Edward N. Wentworth
The Effect of Calcium and Protein Fed Pregnant Swine upon the Size, Vigor, Bone, Coat and Condition of the Offspring p. 269-278
John M. Evvard, Arthur W. Dox, and S. C. Guernsey
A List of the Lepidoptera of Linn County, Iowa p. 279-316
Geo. H. Berry
The Coleoptera of Henry County, Iowa p. 317-340
Inez N. King
The Butterflies of Woodbury County p. 341-346
A. W. Lindsey
An Observation of Longitudinal Division of Hydra p. 349-351
L. S. Ross
