xxvi LIST OF ILLUSTRATIONS 



FACING 

 ^AGE 



Coin Representing Nero and His Mother .... 179 



Medal Showing Chariot Drawn by Four Elephants 180 



Woodcut Illustration of an Elephant 185 



Heads of Socrates and Zanthippe, and of Anytus and 



Melitus 193 



Tension and Compression Tests 229 



The Cutting of a Billiard Ball 245 



Tools Used by Hindu Ivory Carvers .... 257, 259 



Title-page of Japanese Work on Ivory Carving . . 267 

 Tools Used by Japanese Ivory Carvers, and Methods 



of Handling Them 268, 269 



An Ivory Statuette by a Japanese Artist, Illustrat- 

 ing the Various Stages of Its Carving . . 270, 271 

 Outline of a Statuette Traced on a Section of an Ele- 

 phant Tusk, and the Completed Work .... 273 

 Netsukes Designed in Accordance with the Shape 



OF the Ivory Material 275 



Fine Saws Used by Japanese Ivory Carvers . . . 277 

 Restoration of Moeritherium, the Earliest Fossil Form 



Leading Up to the Elephant 324 



Restoration of Palceomastodon, One of the Stages in 



the Development of the Elephant 324 



Restoration of Tetrabelodon angustidens . . . . . 325 



Conies 326 



The Manatee 327 



Evolutionary Changes of Proboscidea .... 335 

 Proboscideans, Approximately to Scale .... 336 

 The Last Lower Molars of Proboscideans . . 336, 337 

 Ancestry of Elephants. Progressive Stages of De- 

 velopment 338 



Mammoth Etched on the Rock of the "Grotte des 



combarelles" 367 



The Triumph of C^sar 486 



