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|The Possibilities of Salton Sea
|5
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|The Sanitation of Air
|19
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|The Jews: A Study of Race and Environment IV
|33
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|Notes on the Development of Telephone Service III
|48
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|Fossil Insects and the Development of the Class Insecta
|55
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|Nature Names in America
|63
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|Comparative Psychology
|76
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|The Value of Science: Tactile Space V
|79
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|The Progress of Science
|91
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|Glacial Erosion in Alaska
|99
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|The Relation of School Organization to Instruction
|120
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|In Search of Truth
|134
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|Is Man an Automaton? |149 |- |A Vocabulary Test |157 |- |Magical Medical Practise in South Carolina |165 |- |The Value of Science: Analysis and Physics VI |175 |- |The Progress of Science |183 |- |colspan=2| |- |A Defence of Pragmatism: Its Mediating Office I |193 |- |The Century Plant, and Some Other Plants of the Dry Country |207 |- |Notes on the Development of Telephone Service IV |229 |- |Denatured Alcohol |243 |- |Spelling Reform and the Conservation of Energy |265 |- |Fritz Schaudnn |274 |- |The Value of Science: Astronomy VII |279 |- |The Progress of Science |285 |- |colspan=2| |- |Pioneers of Science in America |291 |- |Notes on the Development of Telephone Service V |317 |- |The General Economic Importance of Mosquitoes |325 |- |How Shall the Destructive Tendencies of Modern Life Be Met and Overcome? |330 |- |The Value of Science: The Past and the Future of Physics VIII |338 |- |A Defence of Pragmatism: What Pragmatism Means II |351 |- |Civology - A Suggestion |365 |- |The Reclamation of the North Platte Valley |372 |- |Shorter Articles |378 |- |The Progress of Science |379 |- |colspan=2| |- |The Jamaica Earthquake |385 |- |Notes on the Development of Telephone Service VI |404 |- |Sight and Seeing in Ancient Times |413 |- |The Classification of the Arts |429 |- |The Value of Science: The Future of Mathematical Physics IX |437 |- |Is the Mind in the Body? |452 |- |Drug Abuses, their Effects on the People |459 |- |Illusions of Vision and the Canals of Mars |464 |- |The Progress of Science |475 |- |colspan=2| |- |The Problem of Age, Growth and Death I |481 |- |The Progress of our Knowledge of the Flora of North America |497 |- |Notes on the Development of Telephone Service VII |518 |- |The Value of Science: Nominalism and the Universal Invariant X |524 |- |The Acquisition of Language and its Relation to Thought |530 |- |Hygienic Requirements in the Printing of Books and Papers |542 |- |The Waste of Children |549 |- |A Blazing Beach |557 |- |The Progress of Science |565 |- |Index |573 |- |}Popular Science Monthly Volume 70