Vol. 19 (1909)

Published: 1909-01-01

Academy Business

Acts, Appropriation for 1910 and 1911, Officers, Committees, Principal officers since organization, Constitution, By-Laws, Members, Necrology, Annual Meeting, Resolution, The beginning of the Indiana Academy of Science by Amos W. Butler, Greetings, Plans for the future, Banquet Addresses, Minutes

3-88
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President's Address

President's Address: Recent Developments in Physical Science [Publication No. 34.]

A. L. Foley

89-100
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Papers--General

Darwin Fifty Years After

David Starr Jordan

107-110
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Thought Stimulation, Under What Conditions Does It Occur?

Robert Hessler

127-144
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Hygiene of Indoor Swimming Pools, with Suggestions for Practical Disinfection

Severance Burrage

145-156
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The Problem of Sewage Purification in Indiana

R. L. Sackett

157-159
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That Erroneous Hiawatha

Albert B. Reagan

161-162
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The Medicinal Value of Eupatorium Perfoliatum

A. J. Bigney

163-164
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Chemistry

Methods and Materials Used in Soil Testing

H. A. Huston

111-118
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Refractive Index as a Measure of Dry Substance in Saccharine Products

A. Hugh Bryan

165-174
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Conductivity and Ionization of Solutions of Certain Salts in Ethyl Amine

E. G. Mahin

175-180
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A Study of the Chemical Composition of Butter Fat

O. F. Hunziker, George Spitzer

181-196
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On a New Complex Cyanogen Compound

A. R. Middleton

197-198
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The Determination of Endothermic Gases by Combustion

A. R. Middleton

199-200
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Mathematics

Methods in Solid Analytics

Arthur S. Hathaway

201-202
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Motion of n Bodies

Arthur S. Hathaway

203-204
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Physics

Direct Reading Accelerometers

C. R. Moore

205-224
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Notes on the Strength of Concrete Building Blocks

H. H. Schofield

225-228
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Polarization of Cadmium Cells

Rolla R. Ramsey

229-232
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Investigation of a Point Discharge in a Magnetic Field

Oscar W. Silvey

233-242
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The Tenacity of Gelatine

Arthur L. Foley

243-248
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Cohesion of Water as Modified by Certain Dissolved Salts

Edwin Morrison

249-254
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Abstracts

W. K. Hatt

441-446
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Geology and Geography

Some Features of Delta Formation

Charles R. Dryer

255-262
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A Physiographic Survey of an Area Near Terre Haute, Indiana

Charles R. Dryer, Melvin K. Davis

263-268
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Collecting Area of the Waters of the Hot Springs, Hot Springs, Arkansas

A. H. Purdue

269-276
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Where Do the Lance Creek ("Ceratops") Beds Belong, in the Cretaceous or Tertiary?

Oliver P. Hay

277-304
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Paleontology and the Recapitulation Theory

E. R. Cumings

305-340
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The Tippecanoe, an Infantile Drainage System

W. A. McBeth

341-344
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Zoology

Federal Control of International and Interstate Waters

B. W. Evermann

119-124
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Abstracts

Charles W. Greene

125-126
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A Paired Entoplastron in Trionyx and Its Significance

Henry H. Lane

345-350
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Abstracts

H. L. Osborn

351-352
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The Mocking Bird About Moores Hill, Indiana

A. J. Bigney

353
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Observations on Woodpeckers

John T. Campbell

354
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Observations on Cerebral Localization

J. Rollin Slonaker

355-362
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The Evolution of Insect Galls as Illustrated by the Genus Amphibolips

Mel T. Cook

363-368
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Botany

Recent Progress in Botany

John M. Coulter

101-106
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Apparatus for Illustrating Boyle's Law

Frank M. Andrews

369-372
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Some Monstrosities in Plants

Frank M. Andrews

373-374
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A List of Algae (Chiefly from Monroe County, Indiana.)

Frank M. Andrews

375-380
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Additions to Indiana Flora, Number 4

Charles C. Deam

381-382
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Right and Wrong Conceptions of Plant Rusts

J. C. Arthur

383-390
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The Effect of Preservatives on the Development of Penicillium

Katherine Golden Bitting

391-416
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Further Notes on Timothy Rust

Frank D. Kern

417-418
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The Woodlot for Central Indiana

E. C. Pegg, M. B. Thomas

419-440
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Forest Conditions in Indiana

Stanley Coulter

447-462
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Back Matter

Index

463-466
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