CONTENTS 



I. The Earliest Picture in the World 

 II. Portraits of Mammoths by Men who saw 

 them .... 



III. The Art of Prehistoric Men 



IV. Vesuvius in Eruption 

 V. Blue Water 



VI. The Biggest Beast 

 VII. What is meant by "a Species"? 

 VIII. More about Species . 

 IX. Species in the Making 

 X. Some Specific Characters . 

 XI. Hybrids .... 

 XII. The Cross-breeding of Races 



XIII. Wheel Animalcules . 



XIV. More about Wheel Animalcules 

 XV. Suspended Animation 



XVI. More about Suspended Animation 

 XVII. The Swastika . 

 XVIII. The Origin of the Swastika 

 XIX. The Tomoye and the Swastika 

 XX. Coal 



XXI. Boring for Oil 



XXII. The Story of Lime-Juice and Scurvy 

 Index ..... 



