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|The International Congress of Arts and Science
|5
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|The Present Problems of Inorganic Chemistry
|33
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|The Light of the Stars
|46
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|The Fundamental Concepts of Physical Science
|56
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|The Methods of the Earth-Sciences
|66
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|Utilitarian Science
|76
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|The Evolution of the Scientific Investigator
|92
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|The Progress of Science
|97
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|The Reclamation Service
|107
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|Chinese and Japanese Immigration
|117
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|The Status of American College Professors
|122
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|A Decade of Library Progress in America
|131
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|Nature's Hieroglyphics
|139
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|The Present Problems of Physiological Chemistry
|150
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|The Agricultural Distribution of Immigrants
|166
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|The Conceptions and Methods of Psychology
|176
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|Shorter Articles and Discussion
|187
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|The Progress of Science
|189
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|Some Experiments of Luther Burbank
|201
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|The Present Problems of Paleontology
|226
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|Social and Political Effects of Immigration
|243
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|Galileo I
|256
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|Radioactivity and Matter
|267
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|Educational Problems
|273
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|The United States Pharmacopeia
|279
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|The Mosquito Investigation in New Jersey
|281
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|The Progress of Science
|287
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|An Address on Astrophysics
|297
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|The Metric System of Weights and Measures
|319
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|A Botanical Laboratory in the Desert
|329
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|Galileo II
|343
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|How Immigrants are Inspected
|357
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|On the Relations of the Land and Fresh-Water Mollusk-Fauna of Alaska and Eastern Siberia |362 |- |Examinations, Grades and Credits |367 |- |Shorter Articles and Discussion |379 |- |The Progress of Science |380 |- |colspan=2| |- |The Bermuda Islands and the Bermuda Biological Station for Research I |393 |- |A Study of the Development of Geometric Methods |412 |- |Some Present Problems in Technical Chemistry |435 |- |Stamina |449 |- |The Natural History of Adolescence |457 |- |Higher Education of Women and Race Suicide |466 |- |Simple Bacteriology for Public Schools |474 |- |Shorter Articles and Correspondence |478 |- |The Progress of Science |482 |- |colspan=2| |- |The Menace to Niagara |489 |- |Sunspots and Weather |505 |- |Medical Research: Its Place in the University Medical School |515 |- |The Problem of Immigration |531 |- |Age and Eminence |538 |- |Authority in English Pronunciation |544 |- |The Bermuda Islands and the Bermuda Biological Station for Research II |556 |- |Shorter Articles and Discussion |573 |- |The Progress of Science |576 |- |Index |581 |- |}Popular Science Monthly Volume 66