Issue: 19060601

Friday, June 1, 1906
JUNE, 1906
2
True
69
Friday, November 28, 2014

Articles
cover
481
481
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THE POPULAR SCIENCE MONTHLY.
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PopularScience_19060601_0069_002_0001.xml
article
481
481,482,483,484,485,486,487,488,489,490,491,492,493,494,495,496,497,498,499,500,501,502
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CONCERNING VARIATIONS IN ANIMALS AND PLANTS
Fluctuations
Saltations
Hybridization
Selection
Dichromatism
Ontogenetic Variations
Food Variations of Silkworms
Ontogenetic Species
Functional Variations
Collective Variations
Topographical Segregation
Ontogenesis
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PRESIDENT DAVID STARR JORDAN
WITHIN any given species of animals or plants as occurring in nature, variations of many sorts may appear. No one individual is the exact image of another, either in structure or in function. In theory, at least, no one cell is exactly like another, no one chromosome the exact duplicate of a mother or a sister chromosome.
PopularScience_19060601_0069_002_0002.xml
article
503
503,504,505,506,507,508,509,510,511,512,513,514
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THE HUMAN SIDE OF THE INDIAN
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ALEXANDER F. CHAMBERLAIN
THE oneness of the American Indians with all races of men (including us whites) is readily admitted by those who have seen them in their human activities and not merely in their forced relations with so-called 'higher civilization' The writer was fortunate enough, a number of years ago, to come into the friendliest contact with the Kootenay Indians of northern Idaho and southern British Columbia, one of the least spoiled aboriginal peoples of the continent, and brought back with him to the east many pleasant experiences and reminiscences of 'savage' life.
PopularScience_19060601_0069_002_0003.xml
article
515
515,516,517,518,519,520,521,522,523,524,525,526,527,528,529,530
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THE FRESH-WATER FISHES OF SOUTH AND MIDDLE AMERICA
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PROFESSOR CARL H. EIGENMANN
A. The salient features of the fish fauna of the Americas south of the United States are: 1. Great variety of fish life in the area between the Caribbean Sea and the Argentine Republic. 2. Paucity of 'types' or families contributing to this variety.
PopularScience_19060601_0069_002_0004.xml
article
531
531,532,533,534,535,536
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FACTS ABOUT NOSTRUMS
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HORATIO C. WOOD
THE quantity of secret and semi-secret drug mixtures consumed by the American people is enormous. While it is impossible to determine accurately the extent of the custom of self-medication a recent writer has estimated that over $100,000,000 is expended annually for so-called 'patent medicines' The investigation of the causes which have led to the growth of this business affords an interesting study of human nature and also throws a light upon the subject of the effect on the health of the community.
PopularScience_19060601_0069_002_0005.xml
article
537
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THE TIMES AND PLACES OF EARTHQUAKES
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PROFESSOR H. H. TURNER
THE occurrence of several disastrous earthquakes and eruptions during the last few months inevitably suggests the question whether all these events may not have a common and determinable origin. To avert any of these disasters, even to modify them in the slightest degree, may be entirely hopeless; but the vaguest foreknowledge of their probable occurrence might be of untold value in saving life and property.
PopularScience_19060601_0069_002_0006.xml
article
543
543,544,545,546,547,548,549,550
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VOLCANOS AND RADIOACTIVITY
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MAJOR C. E. DUTTON
ONE of the commonest and perhaps the most impressive of natural phenomena, the volcano, has hitherto been without any explanation of its cause, though it has been before the world a subject of theory for many centuries. The reason for this is quite apparent.
PopularScience_19060601_0069_002_0007.xml
article
551
551,552,553,554,555,556,557,558,559,560,561,562,563
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AN ECLIPSE EXPEDITION TO SPAIN
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DR. S. A. MITCHELL
IF we could sum up the total duration in minutes and seconds of recent eclipses, we should be astounded that astronomers from such phenomena have discovered so very much. Since the spectrograph and the photographic plate were first used together at an eclipse, the sun has been covered up by the moon somewhat less than twenty minutes of time, yet, in these few moments, a great wealth of information has been gained from the eclipsed spectrum.
PopularScience_19060601_0069_002_0008.xml
article
564
564,565
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SHORTER ARTICLES
THE SPANISH AMERICAN TYPE
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THE twenty portraits reproduced here are those of Central American students taken in a haphazard way in a Costa Rican government college. The composite photograph expresses well enough the features common to most of them: the large, dark, dreamy eyes and the relief of both mouth and chin.
PopularScience_19060601_0069_002_0009.xml
article
566
566,567,568,569,570,571,572
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THE PROGRESS OF SCIENCE.
THE EARTHQUAKE ON THE CALIFORNIA COAST
THE ENGINEERING BUILDING OF NEXT YORK CITY
THE CARNEGIE FOUNDATION FOR THE ADVANCEMENT OF TEACHING
SCIENTIFIC ITEMS
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IT is too late to describe here the appalling disaster that has overtaken San Francisco and the neighboring regions and too soon to attempt to present a scientific survey of the causes leading to the catastrophe and the precautions that should be taken to avoid its recurrence.
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article
573
573,574,575,576
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INDEX
NAMES OF CONTRIBUTORS ARE PRINTED IN SMALL CAPITALS.
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Adaptation, Individual, to Environment, JOSEPH HERSHEY BAIR, 440 Adirondacks, Physiography of the, JAMES FURMAN KEMP, 195 Africa, South, With the British Assosociation, ERNEST W. BROWN, 5, 145 Agriculture, Department of, Work under Secretary Wilson, 187
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