Table of Contents
Academy Business
| Officers, Committees, Minutes, Winter Meeting | |
| 2-22 |
Memorials
| George William Albertson | |
| R. G. Smith | 23 |
| Andrew Johnson Bigney | |
| Charles E. Torbett | 23-25 |
| John Merle Coulter | |
| H. C. Cowles | 26-29 |
| John Candee Dean | |
| Russell Sullivan | 30-33 |
| John Sterling Kingsley | |
| Fernandus Payne | 34 |
| Robert Ridgway | |
| Amos W. Butler | 34-35 |
| A Cairn of Remembrance | |
| Fred J. Breeze | 36-38 |
Papers--General
| History and Results of Nature Guiding in Indiana State Parks | |
| Sidney R. Esten | 39-42 |
President's Address
| President's Address—The Outlook in Physiology | |
| L. J. Rettger | 43-52 |
Papers on Botany
| A Note on the Hybridizing of Freesias | |
| W. P. Morgan | 53-56 |
| Algae of Monroe County, Indiana, III | |
| F. M. Andrews | 57 |
| Studies in Pollen, V | |
| F. M. Andrews | 58 |
| A Pressure Cell | |
| F. M. Andrews | 59-62 |
| Observations on the Dwarf Mistletoe, Arceuthobium pusillum | |
| T. G. Yuncker | 63-66 |
| Forest and Prairie of Benton County, Indiana | |
| Winona H. Welch | 67-72 |
| A Wild Flower Sanctuary on the Tippecanoe | |
| Fred G. Breeze | 73-74 |
| Indiana Fungi, XII | |
| J. M. Van Hook | 75-84 |
| Indiana Plant Diseases, 1928 | |
| Max W. Gardner, E. B. Mains | 85-100 |
| Scab of Small Grains and Feeding Trouble in Indiana in 1928 | |
| E. B. Mains, C. M. V, P. B. Curtis | 101-110 |
| Hydrogen-ion Reaction of Native Indiana Fern Soils | |
| J. R. Craw | 111-114 |
| Pteridophytes of Turkey Run State Park | |
| Frederick H. Test | 115-118 |
| A Simple Respirometer for Quantitative Class Experiments | |
| Raymond E. Girton | 119-122 |
| Plants New or Rare in Indiana, XV. | |
| Chas. C. Deam | 123-126 |
| Enumeration of the Vascular Flora of a Limestone Area of the Bloomington Quadrangle, Monroe County, Indiana | |
| Gladys Price, Winona H. Welch | 127-132 |
| Some Flowering Plants Collected in Parke County, Indiana: | |
| Rexford F. Daubenmire | 133-134 |
| New Parasitic Fungi of Montgomery County | |
| H. J. Lee | 135-136 |
Papers on Chemistry and Bacteriology
| The Decomposition of Cellulose in Nature | |
| P. A. Tetraull | 137-152 |
| A Comparison of Halogeno and Oxyacids | |
| J. A. Nieuwland, T. H. Vaughn | 153-154 |
| Stability of Barium Sulphate at High Temperatures | |
| E. G. Mahin, Bro. Kilian | 155-156 |
| Pond Water Composition and Mosquitoes | |
| C. H. Carr | 157-158 |
| Concerning Certain Pyridine Homologs | |
| Jacob W. H. Aldred, Robert E. Lyons | 159-164 |
| Organic Compounds of Selenium, I. and II. | |
| W. E. Bradt, M. Van Valkenburgh | 165-182 |
Papers on Geology and Geography
| Two Fort Wayne Wells in the Silurian and Their Bearing on the Niagran of the Michigan Basin | |
| E. R. Cumings | 183-198 |
| Silurian Reefs Near Tiffin, Carey and Marseilles, Ohio | |
| E. R. Cumings | 199-203 |
| List of Species from the New Corydon, Kokomo and Kenneth Formations of Indiana and from Reefs in the Mississinewa and Liston Creek Formations | |
| E. R. Cumings | 204-212 |
| Intraformational Solution of the Floyds Knob Limestone | |
| Paris B. Stockdale | 213-220 |
| Notes on Some Northwestern Indiana Rock Exposures | |
| Robert R. Shrock, Clyde A. Malott | 221-228 |
| Aerial Photographs of Jennings County | |
| T. M. Bushnell | 229-230 |
| The Relation of Geologic Structures in Indiana to the Isomagnetic Lines of Vertical Intensity and to the Anomalies of Magnetic Intensity | |
| W. N. Logan | 231-236 |
| Notes on the Unearthing of a Mastodon Skeleton | |
| Edward Kintner | 237-240 |
Papers on Physics, Astronomy and Mathematics
| The Product of Two Integrals | |
| Will E. Edington | 241-242 |
| Astronomical Interpretations of a Formula in the Theory of Integral Invariants | |
| O. E. Glenn | 243-246 |
| Photography of the 1929 Eclipse with a New Type Reflector: | |
| W. A. Cogshall | 247-248 |
| Ionization and Thermal E. M. F. in Selenium Vapor | |
| W. T. Sproull, R. E. Martin | 249-256 |
| The Electrical Conductivity of the Atmosphere at Terre Haute, Indiana | |
| Ira W. Vance, J. F. Mackell | 257-262 |
| Mistaken Ideas Concerning Sound Absorbers | |
| A. L. Foley | 263-268 |
| A New, Efficient and Economical Type of Sound Absorbing Material and a Simple and Inexpensive Method of Installation | |
| A. L. Foley | 269-274 |
| Output Characteristics of Magnetic Pickups | |
| J. B. Hershman | 275-278 |
| Resistance of Radio Condensers | |
| R. R. Ramsey | 279-284 |
| High Frequency Rays in the Aurora Borealis and High Altitude Tests on Mt. Everest | |
| E. A. Smith | 285-290 |
Papers on Zoology
| Insects of Indiana for 1929 | |
| J. J. Davis | 291-304 |
| The Digestion of a Mouse by a Tarantula | |
| John S. Andrews | 305-306 |
| Some Structural Peculiarities of Stenobothrium macrobothrium, Diesing | |
| Francis J. Wenninger | 307-308 |
| Records of Indiana Dragonflies, IV., 1929 | |
| B. Elwood Montgomery | 309-314 |
Back Matter
| Members, Index | |
| 315-338 |