  | I. | A Day in the Oberland | 1 | | Fertilization of Sage—The Edelweiss—The Jungfrau's Breast—Contortions of Rock-strata—The Jungfrau Railway—Mountain Sickness. | | | II. | Switzerland in Early Summer | 13 | | Alpine Flowers—Flowers of the Meadows and Woods—The Herb Paris. | | | III. | Gletsch | 19 | | From Baveno to the Rhone Glacier—A Glacier by the Roadside—Changes in the Glacier. | | | IV. | The Problem of the Galloping Horse | 25 | | The Cinematograph—Ancient Representations of Gallop—The Dog in MycenÆan Art—What ought an Artist to do?—Attention as a Condition of Seeing—Judgment and Prejudice—Natural and Artificial Paces—Photographs by Electric Spark—Use of Instantaneous Photographs—Errors as to the Size of the Moon—The Painter and the Moon—The Moon on the Stage. | | | V. | The Jewel in the Toad's Head | 55 | | The Decay of Credulity—A Sceptical Physician—How to Test a Toadstone—Other Magical Stones—Medicinal and Magical Stones. | | | VI. | Elephants | 65 | | The Indian and the African Elephant—Size of Modern Elephants—Ears and Teeth of Elephants—Earliest Elephants brought to Europe—The Elephant's Legs—Tusks used in Digging—Elephants used in War—Geological Strata since the Chalk—Ancestral Mammals—The Typical or Ancestral Set of Teeth—The Peculiarities of the Teeth of Elephants—Extinct Relatives of Elephants—Ancestors of Elephants—Origin of the Elephant's Trunk. | |
| VII. | A Strange Extinct Beast | 92 | | Fossil Skeletons and Jaw-bones—The Skull and Teeth of Goats—The Teeth of Rats—The Rat-toothed Goat—Origin of the Rat-toothed Goat. | | | VIII. | Vegetarians and Their Teeth | 102 | | Teeth of Carnivors—Mixed Diets—Disease-germs in Food. | | | IX. | Food and Cookery | 113 | | Special Diet of Various Races—Food and Habit—Nervous Control of Digestion—Wholesale Food and Mechanical Cookery—The Burnt Offering of the Jews—Women Neglect Cookery—A Great German's Appreciation. | | | X. | Smells and Perfumes | 126 | | Smells and Memory—Accidental Qualities—Bacteria and Smells—Some Remarkable Smells. | | | XI. | Kisses | 134 | | Kissing and Smelling—Variations in the Sense of Smell—Radiation and Odours—Attraction by Smell—Unconscious Guidance by Smell. | | | XII. | Laughter | 144 | | Why do we Laugh?—Varieties of Laughter—The Laugh of Escape from Death—The Laugh of Derision. | | | XIII. | Fatherless Frogs | 152 | | Fertilization of the Egg-cell—Egg-cells Developing Unfertilized—M. Bataillon's Discovery. | | | XIV. | Primitive Beliefs about Fatherless Progeny | 159 | | Harvey and Milton—Reproduction by Budding—Stories of Virgin Births—Spiritual Theory of Conception. | | | XV. | The Pygmy Races of Men | 167 | | Characteristics of Pygmies—Colour of the Skin—Egyptian Stories of Pygmies—Congo and New Guinea Pygmies—The Causes of Small Size—Smallness a Correlation. | |
| XVI. | Prehistoric Petticoats | 180 | | Early Carvings and Pictures—Paintings in Caverns—Painting of Human Figures—Artistic Sympathy—Aurignacians and Bushmen Allied. | | | XVII. | New Year's Day and the Calendar | 191 | | Make-believe and New Year—Divisions of Time—The Difficulties of the Calendar—Pope Gregory's Ten Days—The Astronomer Royal and the Shah. | | | XVIII. | Eastertide, Shamrocks and Spermaceti | 201 | | The Real Shamrock—Sham Shamrock—Leonardo or Lucas?—Various Fats. | | | XIX. | Museums | 209 | | The Muses—The Museum of Alexandria—Picture Galleries and Museums—The Purposes of Museums—The First Business of Museums—National Value of Museums—University Museums—Not for Children but for Adults—Screens and Electric Lifts—Frames and Setting of Pictures. | | | XX. | The Secret of a Terrible Disease | 227 | | The Angel of Death—The Tyranny of Parasites—Typhus and Monkeys—Typhus Fever in Russia. | | | XXI. | Carriers of Disease | 235 | | The Entrance of Parasites—Man as a Carrier of Disease—House Flies and Disease. | | | XXII. | Immunity and Curative Inoculations | 241 | | Inoculation of Smallpox—Antitoxins—The Wonderful Properties of Blood—Germ-killing Poisons in the Blood—Opsonins or Sauce for Germs. | | | XXIII. | The Strange Story of Animal Life in New Zealand | 251 | | Strange Birds—Destroyed by Europeans—Introduced Animals. | | | XXIV. | The Effacement of Nature by Man | 259 | | Disappearance of Great Animals—Man's Reckless Greed—Hope in Irrigation. | |
| XXV. | The Extinction of the Bison and of Whales | 266 | | Drowning in a Dead Whale's Heart—The Value of Whalebone—No more Turtle Soup. | | | XXVI. | More about Whales | 273 | | The Shape of Whales—Enormous Pressure of Gas in the Blood—The Killer and the Narwhal—Fossil Whales. | | | XXVII. | Misconceptions about Science | 281 | | What Science does not explain—Darwin's Theory is adequate—The Aquosity of Water—Need for Interpreters of Science—The Exploded Ghost called "Caloric"—Nightmares Destroyed by Science—When did the Soul arrive?—The Great Silence. | |
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