The Popular Science Monthly, August, 1900, Vol. 57, May, 1900 to October, 1900THE POPULAR SCIENCE MONTHLY.Reading editionChapter navigation13 reading sectionsGo to chapterChoose a chapter…THE POPULAR SCIENCE MONTHLYTHE POPULAR SCIENCE MONTHLY.RHYTHMS AND GEOLOGIC TIME.A By G. K. GILBERT, UNITED STATES GEOLOGICAL SURVEY.THE PHOTOGRAPHY OF SOUND WAVES. By Professor R. W. WOOD, UNIVERSITY OF WISCONSIN.THE PSYCHOLOGY OF RED. By HAVELOCK ELLIS.CHAPTERS ON THE STARS. By Professor SIMON NEWCOMB, U. S. N.COLONIES AND THE MOTHER COUNTRY (III). By JAMES COLLIER.CAUSES OF DEGENERATION IN BLIND FISHES. By Professor CARL H. EIGENMANN, INDIANA UNIVERSITY.THE EVOLUTION AND PRESENT STATUS OF THE AUTOMOBILE. By WILLIAM BAXTER, Jr.SCIENTIFIC RESULTS OF THE NORWEGIAN POLAR EXPEDITION, 1893–1896.O By General A. W. GREELY, U. S. Army.DISCUSSION AND CORRESPONDENCE.SCIENTIFIC LITERATURE.THE PROGRESS OF SCIENCE.Previous chapter ←THE POPULAR SCIENCE MONTHLYNext chapter →RHYTHMS AND GEOLOGIC TIME.A By G. K. GILBERT, UNITED STATES GEOLOGICAL SURVEY.All chapters and sections (13)THE POPULAR SCIENCE MONTHLYTHE POPULAR SCIENCE MONTHLY.RHYTHMS AND GEOLOGIC TIME.A By G. K. GILBERT, UNITED STATES GEOLOGICAL SURVEY.THE PHOTOGRAPHY OF SOUND WAVES. By Professor R. W. WOOD, UNIVERSITY OF WISCONSIN.THE PSYCHOLOGY OF RED. By HAVELOCK ELLIS.CHAPTERS ON THE STARS. By Professor SIMON NEWCOMB, U. S. N.COLONIES AND THE MOTHER COUNTRY (III). By JAMES COLLIER.CAUSES OF DEGENERATION IN BLIND FISHES. By Professor CARL H. EIGENMANN, INDIANA UNIVERSITY.THE EVOLUTION AND PRESENT STATUS OF THE AUTOMOBILE. By WILLIAM BAXTER, Jr.SCIENTIFIC RESULTS OF THE NORWEGIAN POLAR EXPEDITION, 1893–1896.O By General A. W. GREELY, U. S. Army.DISCUSSION AND CORRESPONDENCE.SCIENTIFIC LITERATURE.THE PROGRESS OF SCIENCE.AUGUST, 1900.◇← THE POPULAR SCIENCE MONTHLYRHYTHMS AND GEOLOGIC TIME.A By G. K. GILBERT, UNITED STATES GEOLOGICAL SURVEY. →