CONTENTS Vll 



PAGE 



Class VI. Mammalia, 311. Order I. Monotremata, 319. 

 Order II. Marsupialia, 320. Order III. Edentata, 323. Order 

 IV. Sirenia, 325. Order V. Cetacea, 326. Order VI. Ungulata, 

 329. Order VIL'Rodentia or Glires, 350. Order VIII. Car- 

 nivora, 356. Order IX. Insectivora, 366. Order X. Chirop- 

 tera, 368. Order XI. Primates, 372. 



THEORIES OF DEVELOPMENT 382 



GLOSSARY 395 



INDEX . . . 399 



