Table of Contents
Academy Business
| Officers, Committees, Minutes, Winter Meeting | |
| 2-20 |
Memorials
| Grace Barkley | |
| T. G. Yuncker | 21-22 |
| Emiel DeWulf | |
| Reprint, Notre Dame Scholastic | 22-23 |
| Alma Marie Bell Haas | |
| Flora A. Haas | 23-24 |
| Oliver P. Hay | |
| W. P. Hay | 24-30 |
| David Allen Owen | |
| Melvin E. Crowell. E. Crowell | 30-31 |
| Brother Alphonsus (Paul Sweet) | |
| Indiana Academy of Science | 31-32 |
President's Address
| President's Address | |
| R. R. Ramsey | 33-44 |
Papers of the General Session
| Scholarship, Intelligence and Personality | |
| Will E. Edington | 45-50 |
| Science in Secondary Schools | |
| Florence A. Gates | 51-56 |
| References to Scientific Literature | |
| M. G. Mellon | 57-60 |
| The Fifth International Botanical Congress | |
| T. G. Yuncker | 61-66 |
Papers on Botany
| Liverworts of Spring Mill State Park | |
| F. M. Andrews | 67 |
| Attack of Fungi on the Wooden Lids of Water Culture Jars | |
| F. M. Andrews | 68 |
| A Study of Pollen | |
| F. M. Andrews | 69 |
| Notes on Uncinula circinata Cooke and Peck | |
| R. C. Busteed | 73-74 |
| Additions to the Vascular Flora of Parke County, Indiana | |
| Rexford F. Daubenmire | 75-76 |
| Plants New or Rare to Indiana, XVI | |
| Chas. C. Deam | 77-80 |
| An Apparatus for Use in Freezing Studies on Fruits, Bulbs, and Tubers | |
| Raymond E. Girton | 81-86 |
| Ecological Relationships of the Most Common Mosses in a Certain Vicinity Near Bloomington, Indiana | |
| Gail C. Glenn, Winona H. Welch | 87-102 |
| The Altered Rate of Growth of Freesia Corms | |
| W. P. Morgan, L. J. Michael | 103-106 |
| Algae of Indiana: Additions to the 1875-1928 Check List | |
| C. Mervin Palmer | 107-110 |
| The Algae Schizomeris and Lemanea in Indiana | |
| C. Mervin Palmer | 111-114 |
| The Stanley Coulter Herbarium at Purdue University | |
| C. L. Porter, J. N. Porter | 115-118 |
| Additions to the Vascular Flora of Jasper County, Indiana, I | |
| Winona H. Welch | 119-122 |
| The Phytoplankton of a Solution Pond with Special Reference to the Periodicity of Certain Algae | |
| Helen L. White | 123-140 |
Papers on Chemistry and Bacteriology
| Organic Compounds of Selenium, III | |
| W. E. Bradt | 141-164 |
| Chemistry in Farm Overalls | |
| R. H. Carr | 165-170 |
| The Use of Metallic Electrodes as Indicators | |
| S. J. French, John M. Hamilton | 171-174 |
| The Relation of pH to the Absorption of Dyes by Bacteria | |
| S. J. French, Wm. H. Wright | 175-178 |
| A New Gas Circulation Absorption Stirrer | |
| J. A. Nieuwland, R. R. Vogt | 179-180 |
| The Serum Neutralization of Hemotoxins | |
| H. M. Powell | 181-184 |
| The Production of Hydrogen Sulphide by Heating Paraffine and Other Hydrocarbon Mixtures with Sulphur | |
| E. D. Scudder, R. E. Lyons | 185-188 |
| Chemistry Projects and Exhibitions | |
| J. Lyman Sheean | 189-192 |
| Mental Performance and the Acid Base Balance of the Blood in Normal Individuals | |
| N. W. Shock | 193-202 |
| The Reaction of Boron Fluoride with Alcohols and glycols | |
| T. H. Vaughn, H. Bowlus, J. A. Nieuwland | 203-206 |
Papers on Geology and Geography
| Micro-organisms from the Waldron Shale of Cliffty Creek, Indiana | |
| Willard Berry | 207-208 |
| Areal Geology of Putnam County, Indiana, as Indicated by the Soil Survey | |
| T. M. Bushnell | 209-212 |
| Notes on Outcrops of Silurian Near Sunman, Ripley County, Indiana | |
| J. W. Huddle | 213-216 |
| Geologic Structure in the Indian and Trinity Springs Locality, Martin County, Indiana | |
| Clyde A. Malott | 217-232 |
| Model of the Two Medicine Valley, Glacier National Park, Montana | |
| E. S. Martin, V. D. Martin | 233-234 |
| Parent Materials of Pike County, Indiana Soils | |
| John T. Miller | 235-236 |
| Two Subterranean Cut-offs in Central Crawford County, Indiana | |
| W. D. Thornbury | 237-242 |
| Some New Tertiary Pecteus | |
| H. I. Tucker | 243-246 |
| Contrasts Between the Twelve Richest and Poorest Indiana Counties | |
| Stephen S. Visher | 247-250 |
| A Probable Fault Near Bretzville, Dubois County, Indiana | |
| George Whitlatch | 251-258 |
Papers on Physics, Astronomy and Mathematics
| The effect of Humidity on the Reverberation Period of a Room | |
| Halson V. Eagleson | 259-260 |
| EFFECT OF FREQUENCY UPON THE END CORRECTION FOR CLOSED RESONANCE PIPES | |
| J. F. Mackell, J. H. Frushour, W. A. Parker | 261-264 |
| A Theoretical Lower Limit to the Mass of a Stable Asteroid | |
| Oliver E. Glenn | 265-266 |
| An Audio-Frequency Laboratory Oscillator | |
| J. B. Hershman | 267-270 |
| The Load of a Power Tube | |
| R. R. Ramsey | 271-276 |
| A Momentum Analysis of Proton and Electron Masses | |
| E. A. Smith, J. A. Vogelmann | 277-280 |
| Cosmolar Rays | |
| E. A. Smith, J. A. Vogelmann | 281-286 |
| Cosmolar Rays | |
| E. A. Smith, J. A. Vogelmann | 287-290 |
| Notes on Photo-Electric Phenomena | |
| H. A. Zinszer | 291-294 |
Papers on Zoology
| A List of the Birds Seen in Marion County, Indiana | |
| F. M. Baumgartner | 295-306 |
| Insects of Indiana for 1930 | |
| J. J. Davis | 307-320 |
| Four Rare Species of Birds in Indiana in 1930 | |
| Sidney R. Esten | 321-322 |
| Birds of Greene and Noble Counties | |
| Sidney R. Esten | 323-334 |
| Some Observations on the Seasonal History of the European Corn Borer, Pyrausta Nubilalis HBN., in Indiana | |
| G. A. Ficht | 335-338 |
| The Amphibia of Montgomery County, Indiana | |
| B. H. Grave | 339-340 |
| Waste in Scientific Research | |
| Robert Hessler | 341-344 |
| The Relation of Oxygen Tension to Oxygen Consumption in the Insects and the Crayfish | |
| Wm. A. Hiestand | 345-346 |
| Records of Indiana Dragonflies, V. 1930 | |
| B. Elwood Montgomery | 347-350 |
| Preliminary List of the Butterflies of Indiana | |
| Robert W. Montgomery | 351-356 |
| Records of Indiana Coleoptera, I. Cicindelidae | |
| B. E. Montgomery, R. W. Montgomery | 357-360 |
| Herpetological Report of Morgan County, Indiana | |
| Jean Piatt | 361-368 |
| Local Movements of Birds | |
| Louis Agassiz Test, Frederick H. Test | 369-370 |
| Birds of Tippecanoe County, Indiana | |
| Louis Agassiz Test, Frederick H. Test | 371-374 |
| A New Ilynassa | |
| H. I. Tucker | 375-376 |
Back Matter
| List of Members, Index | |
| 377-402 |