Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 37 (1930) > Annual Issue
Volume 37, Annual Issue (1930)
Front Matter
Table of Contents p. 17-22
General Interest Articles
In Memoriam: George Luther Smith; Henry Albert; D. S. Fairchild; George Bennett p. 37-48
James H. Lees, L. H. Pammel, and Florence Sinclair Chapin
Research
Factors Influencing the Production of Acetic Acid from Corn Stalks by Thermophilic Bacteria p. 51-52
C. H. Werkman and R. H. Carter
Dimethyl-Alpha-Naphthylamine for the Determination of Bacterial Reduction of Nitrates p. 53-55
C. H. Werkman
Notes on the Bacterial Flora of the Snake p. 57-58
Roger Patrick and C. H. Werkman
Soil Bacteriology as a Science p. 59-64
P. E. Brown
Further Studies on the Nitrate Assimilating Power of Soils p. 65-69
Ray A. Pendleton and Frederick B. Smith
Effect of Artificial Manure on Nitrification in Carrington Loam p. 71-73
Frederick B. Smith
Studies on Nitrogen Fixation in Some Iowa Soils p. 75-75
R. H. Walker
Study of the Weeds of Alfalfa Fields of Iowa p. 77-85
A. L. Hershey and L. H. Pammel
Iowa Plants Notes, IV p. 87-90
R. I. Cratty
Notes on Iowa Grasses p. 91-94
Robert P. Adams
Notes on Some Iowa Cladonias p. 95-100
Alfred R. Stanley
Additional Notes on Iowa Mosses — 1929-1930 p. 96-98
Betty Blagg
Notes On Iowa Mosses II p. 98-100
Lucy M. Cavanagh
Polyembryony in Alfalfa and Sweet Clover p. 100-100
John R. Watt and J. N. Martin
The Status of the Biological Sciences in the High Schools of Iowa p. 101-105
C. W. Lantz
The Effect of Light Intensity on Tissue Fluids in Wheat p. 107-110
W. F. Loehwing
Noteworthy Iowa Fungi p. 111-114
Guy West Wilson
Abnormal Flowers of Populus grandidentata Michx. p. 115-116
Lucy M. Cavanagh
Simultaneous Development of the Seed Coat and Embryo in the Seeds of Sweet Clover p. 117-123
John R. Watt
Development of the Vascular System of Corn p. 125-126
A. L. Hershey and J. N. Martin
Identification of Symphoricarpus Occidentalis p. 127-130
Florence D. Smith
Germination and Seedling Forms of Some Woody Plants p. 131-141
L. H. Pammel and C. M. King
Some Weeds of Iowa, Florida, Lower Rio Grande Valley, Cuba and India Compared p. 143-149
L. H. Pammel
Single Spore Isolation p. 151-159
W. H. Davis
Heliantheae of Iowa II p. 161-208
M. Rae Johns
The Effect of Physical Factors on the Development of Woodland and Prairie Associations in Iowa p. 209-209
J. M. Aikman
The Anatomy of the Crowns and Roots of the Annual and Biennial White Sweet Clover Compared p. 209-210
J. N. Martin
European Bindweed in Iowa p. 210-210
A. L. Bakke
Purification of Water by Electro-Osmose p. 211-216
Edward Bartow and R. H. Jebens
Base Exchange Between Dyes and Soils p. 217-222
Wilbur L. Hoff and J. A. Wilkinson
The Heats of Adsorption of Organic Vapors on Charcoal at 25° and 50° p. 223-223
J. N. Pearce and G. H. Reed
The Adsorption of Certain Vapors by Activated Charcoal p. 223-223
J. N. Pearce and Paul E. Peters
The Solubility of Copper Iodate in Aqueous Salt Solutions p. 223-224
Ben H. Peterson and Earl L. Meyers
The Adsorption of Chromate Ions by Colloidal Aluminum Hydroxide p. 224-224
Ben H. Peterson and Kieth H. Storks
Catalytic Hydrogenation of Furfural p. 225-225
Ralph L. Van Peursem
Some Physical Properties of Concentrated Aqueous Salt Solutions p. 225-225
J. N. Pearce and Mildred A. Hooper
Some Observations on the Relation of the Composition of the Diet to Lactation p. 227-230
P. D. Wilkinson and V. E. Nelson
The Baking Temperature of Bread p. 231-233
O. B. Read
Decomposition of Optically Active Diazo Compounds p. 235-236
Francis Earl Ray and Martha G. Hemphill
Growth, Reproduction, and Lactation on Diets Containing Soy Beans as the Sole Source of Vitamins B and G p. 237-240
P. D. Wilkinson and V. E. Nelson
The Selection of Thermometers for General Organic Chemistry p. 241-245
Thomas H. Liggett
The Chlorine Derivatives of Vanillin p. 247-247
L. Chas. Raiford and J. G. Lichty
Mechanisms of Addition and Substitution Reactions of Furfural and Derivatives p. 247-248
Henry Gilman, G. F. Wright, J. B. Dickey, and A. P. Hewlett
The Toxicities of Some Organo-Lead Compounds for Cancer and Related Studies p. 248-248
Henry Gilman, O. M. Gruhzit, J. D. Robinson, and E. B. Towne
The Preparation of m-Hydroxybenzonitrile p. 248-249
James B. Culbertson, Erwin L. Carpenter, and Ernest K. Nielsen
Monobromoamine with Organomagnesium Halides p. 250-250
Geroge H. Coleman and Charles B. Yager
Selective Action in the Zincke Nitration p. 250-250
L. Chas. Raiford and G. R. Miller
A Spirifer disjunctus Fauna in Iowa p. 251-254
Lowell Robert Laudon
The Fauna of the Chemung Formation of Southwestern New York p. 257-261
H. Donald Curry
Maximum Precipitation in Short Periods of Time p. 263-265
Charles D. Reed
Road Materials from the Des Moines Series of the Pennsylvanian System of South-Central Iowa p. 267-271
L. W. Wood
The Chemung Formation of Iowa and Western New York p. 273-273
A. C. Tester
Naming of Burlington Limestone p. 273-274
Charles Keyes
The Clarinda Oil Prospect p. 274-274
James H. Lees
A Large Fragment of Proboscidian Tusk Found near Glenwood, Iowa, and Notes of Similar Finds p. 274-274
Paul Rowe
Recessional Moraines of the Wisconsin in Iowa p. 275-275
John E. Smith
A Note on the Stratigraphy of the Cretaceous in Northwestern Iowa p. 275-275
A. C. Tester
Easternmost Foldings of Ancestral Rockies p. 275-276
Charles Keyes
Ancient Iowa Orogenics and Their Present Day Impress p. 276-277
Charles Keyes
A Statistical Test of Experimental Technique p. 279-287
George W. Snedecor
On the Summation Σx^n p. 289-290
John F. Reilly
Statistical Control of a Grading System p. 290-293
George W. Snedecor
An Algorithm for Writing the Coefficients of a Polynomial with Given Zeros p. 293-293
C. W. Wester
Progress in the Analysis of Cosmic-Ray Observations p. 294-296
LeRoy D. Weld
The Change of Phase on Reflection of Light from the Silvered Interfaces of an Etalon p. 297-298
E. Hobart Collins
Some Recent Developments in High Pressure Windows p. 299-302
Robert Wilson and Thos. C. Poulter
Skyshine and Sunshine at Ames p. 303-305
William Kunerth and Russel D. Miller
Minimum Light Intensities Required for Reading p. 307-309
William Kunerth
X-Ray Diffraction in Water 2° to 98°C: The Nature of Molecular Association p. 309-310
G. W. Stewart
Absorption Spectrum of Vitamin A Concentrates p. 310-310
Jay W. Woodrow and J. B. Philipson
The Color of Meats and of the Munsell Color Charts Compared p. 310-311
A. A. Benedict
A Study of Phosphorescent Zinc Sulphide Screens and Radioactivity Under Extremely High Pressure p. 311-312
Thomas C. Poulter and Harold McComb
Apparatus for Determination of Resistivity at Low Temperatures p. 313
A. G. Hoyem
Magnetization of Electrolytic Nickel Films p. 313
E. P. T. Tyndall and H. E. Malmstrom
The Disruption of Potentials within a Raw Potato under Constant Applied Voltage p. 313-313
E. C. McCracken
Factors Influencing the Electrical Resistance of the Potato p. 313-314
E. C. McCracken
The Effect of Gas-Pressure on Tesla-Luminescence p. 314-314
G. M. Wissink
Velocity of Ultra-Sonic Waves in Vapor p. 314-315
George E. Thompson
Mean Free Path of Gases by a Direct Method p. 315-315
John A. Eldridge
The Earth as a Source of Heat for Outbuildings p. 315-316
L. V. Crum
Problems Suggested by an Uncertainty Principle in Acoustics p. 316-316
G. W. Stewart
On the Conductivity of Cod Liver Oil p. 316-317
L. W. Butler
The Influence of Position on the Apparent Position, Size and Form of Angles p. 319-323
William B. Collins
The Influence of Intelligence and Other Factors on the Type of Punishment Administered to Children p. 325-328
E. G. Lockhart
The Iowa Piano Camera: Some Preliminary Findings p. 329-332
Laila Skinner
A Study of a Class of Twenty Failing Students at Iowa State College p. 333-336
J. E. Evans
A Statistical Study of Industrial Science Students of the Class of 1926 p. 337-341
Gertrude M. Cox
The Food Selections of Nursery School Children p. 343-350
Thomas F. Vance
A Sound Wave Analysis of Tlingit Speech p. 351-355
Ray E. Miller
Judging Children's Literature p. 352-354
Ivy C. Husband
The Psychology of Division p. 354-355
H. A. Jeep
Applications of the Strobophotograph to Phonophotography p. 355-355
Scott N. Reger
Bird Records of Two Winters, 1920-1922, in the Upper Missouri Valley p. 357-366
T. C. Stephens
Some Needed Bird Observations in Iowa p. 367-369
Walter W. Bennett
Twelve Hundred Miles of Winter Birds p. 371-374
Chas. J. Spiker
Freak Color Inheritance in Graham's Watersnake p. 375-377
J. E. Guthrie
Two Cases of Abnormal Incisors in White Rats p. 379-380
J. E. Guthrie
Some Peculiarities of the Plagiostome Ear p. 381-383
H. W. Norris
A Study of the Membracidae Known to Occur in Iowa p. 385-386
Don W. Hookom
The 1929 Distribution of White Grubs in Iowa p. 387-388
H. E. Jaques
Springtails as Economic Insects p. 389-392
Harlow B. Mills
A Study of Variation in the Markings of Chauliognathus pennsylvanicus De G. and Chaulioganthus marginatus Fab. p. 393-396
Etelka Rockenbach
The Buffalo in Iowa p. 397-397
L. H. Pammel
The Development of the Ovary and Oviduct of the Gold Fish p. 397-398
Frank A. Stromsten
Notes on Vertebrates of Iowa Prairies p. 398-399
Geroge O. Hendrickson
Biology in High Schools of Iowa p. 399-400
George O. Hendrickson
Comparative Growths of Infusoria-Free and Normal Lambs p. 400-400
E. R. Becker and R. E. Everett
Some Home-Made Teaching Models p. 400-401
J. E. Guthrie
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