Vol. 39 (1929)

Published: 1929-01-01

Academy Business

Officers, Committees, Minutes, Winter Meeting

2-22
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Memorials

George William Albertson

R. G. Smith

23
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Andrew Johnson Bigney

Charles E. Torbett

23-25
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John Merle Coulter

H. C. Cowles

26-29
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John Candee Dean

Russell Sullivan

30-33
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John Sterling Kingsley

Fernandus Payne

34
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Robert Ridgway

Amos W. Butler

34-35
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A Cairn of Remembrance

Fred J. Breeze

36-38
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Papers--General

History and Results of Nature Guiding in Indiana State Parks

Sidney R. Esten

39-42
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President's Address

President's Address—The Outlook in Physiology

L. J. Rettger

43-52
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Papers on Botany

A Note on the Hybridizing of Freesias

W. P. Morgan

53-56
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Algae of Monroe County, Indiana, III

F. M. Andrews

57
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Studies in Pollen, V

F. M. Andrews

58
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A Pressure Cell

F. M. Andrews

59-62
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Observations on the Dwarf Mistletoe, Arceuthobium pusillum

T. G. Yuncker

63-66
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Forest and Prairie of Benton County, Indiana

Winona H. Welch

67-72
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A Wild Flower Sanctuary on the Tippecanoe

Fred G. Breeze

73-74
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Indiana Fungi, XII

J. M. Van Hook

75-84
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Indiana Plant Diseases, 1928

Max W. Gardner, E. B. Mains

85-100
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Scab of Small Grains and Feeding Trouble in Indiana in 1928

E. B. Mains, C. M. V, P. B. Curtis

101-110
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Hydrogen-ion Reaction of Native Indiana Fern Soils

J. R. Craw

111-114
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Pteridophytes of Turkey Run State Park

Frederick H. Test

115-118
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A Simple Respirometer for Quantitative Class Experiments

Raymond E. Girton

119-122
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Plants New or Rare in Indiana, XV.

Chas. C. Deam

123-126
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Enumeration of the Vascular Flora of a Limestone Area of the Bloomington Quadrangle, Monroe County, Indiana

Gladys Price, Winona H. Welch

127-132
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Some Flowering Plants Collected in Parke County, Indiana:

Rexford F. Daubenmire

133-134
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New Parasitic Fungi of Montgomery County

H. J. Lee

135-136
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Papers on Chemistry and Bacteriology

The Decomposition of Cellulose in Nature

P. A. Tetraull

137-152
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A Comparison of Halogeno and Oxyacids

J. A. Nieuwland, T. H. Vaughn

153-154
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Stability of Barium Sulphate at High Temperatures

E. G. Mahin, Bro. Kilian

155-156
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Pond Water Composition and Mosquitoes

C. H. Carr

157-158
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Concerning Certain Pyridine Homologs

Jacob W. H. Aldred, Robert E. Lyons

159-164
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Organic Compounds of Selenium, I. and II.

W. E. Bradt, M. Van Valkenburgh

165-182
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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
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Silurian Reefs Near Tiffin, Carey and Marseilles, Ohio

E. R. Cumings

199-203
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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
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Intraformational Solution of the Floyds Knob Limestone

Paris B. Stockdale

213-220
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Notes on Some Northwestern Indiana Rock Exposures

Robert R. Shrock, Clyde A. Malott

221-228
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Aerial Photographs of Jennings County

T. M. Bushnell

229-230
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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
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Notes on the Unearthing of a Mastodon Skeleton

Edward Kintner

237-240
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Papers on Physics, Astronomy and Mathematics

The Product of Two Integrals

Will E. Edington

241-242
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Astronomical Interpretations of a Formula in the Theory of Integral Invariants

O. E. Glenn

243-246
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Photography of the 1929 Eclipse with a New Type Reflector:

W. A. Cogshall

247-248
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Ionization and Thermal E. M. F. in Selenium Vapor

W. T. Sproull, R. E. Martin

249-256
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The Electrical Conductivity of the Atmosphere at Terre Haute, Indiana

Ira W. Vance, J. F. Mackell

257-262
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Mistaken Ideas Concerning Sound Absorbers

A. L. Foley

263-268
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A New, Efficient and Economical Type of Sound Absorbing Material and a Simple and Inexpensive Method of Installation

A. L. Foley

269-274
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Output Characteristics of Magnetic Pickups

J. B. Hershman

275-278
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Resistance of Radio Condensers

R. R. Ramsey

279-284
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High Frequency Rays in the Aurora Borealis and High Altitude Tests on Mt. Everest

E. A. Smith

285-290
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Papers on Zoology

Insects of Indiana for 1929

J. J. Davis

291-304
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The Digestion of a Mouse by a Tarantula

John S. Andrews

305-306
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Some Structural Peculiarities of Stenobothrium macrobothrium, Diesing

Francis J. Wenninger

307-308
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Records of Indiana Dragonflies, IV., 1929

B. Elwood Montgomery

309-314
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Back Matter

Members, Index

315-338
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