xii SCIENCE FROM AN EASY CHAIR 



FIG. 



1 8. HEAD OF THE ANCESTRAL ELEPHANT PAL^EOMASTODON 



19. RESTORED MODEL OF THE SKULL AND LOWER JAW OF 



THE ANCESTRAL ELEPHANT PAL^EOMASTODON . 



20. HEAD OF THE EARLY ANCESTOR OF ELEPHANTS MERI- 



THERIUM AS IT APPEARED IN LIFE . . . . 



21. SKULL AND LOWER JAW OF A GOAT 



22. TEETH IN THE LOWER AND UPPER JAW OF THE GOAT 



23. SKULL OF A TYPICAL "RODENT" MAMMAL, THE COYPU 



RAT 



24. TEETH OF THE COYPU RAT 



25. SKULL OF THE RAT-TOOTHED GOAT, MYOTRAGUS . 



26. SKULL OF A CLOUDED TIGER 



27. TEETH OF THE LOWER AND UPPER JAW OF THE SAME 



CLOUDED TIGER'S SKULL 



28. FIGURE FROM A GROUP DRAWN ON A GREEK VASE 



29. GROUP OF WOMEN CLOTHED IN JACKET AND SKIRT 



WITH "WASP-LIKE" WAISTS 



30. FURTHER PORTION OF SAME GROUP AS FIG. 29 



31. Two KINDS OF ASCIDIANS OR "SEA-SQUIRTS" 



32. A DISSECTION OF AN ASCIDIA 



33. BRILLIANTLY COLOURED STAR-LIKE GROWTHS 



34. TADPOLE OF A FROG AND OF AN ASCIDIAN 



35. ANATOMY OF THE TADPOLES OF THE FROG AND OF THE 



ASCIDIAN 285 



36. HEAD OF AN ASCIDIAN TADPOLE 287 



37. FIXATION OF THE ASCIDIAN TADPOLE BY ITS HEAD TO 



A ROCK 288 



38. Do., A LATER STAGE 289 



39. THE DEVELOPMENT OF THE FROG'S TADPOLE INTO A 



YOUNG FROG 291 



40. Two INDIVIDUALS OF THE SHIP'S BARNACLE . . .294 



41. DEVELOPMENT OF THE BARNACLE FROM A FREE-SWIM- 



MING STAGE WITH Six ACTIVE LEGS .... 295 



