IV CONTENTS. 



Chap. Page 



29. The generation of spiders . . 29 



30. Scorpions *• 



31. Thestellio 31 



32. The grasshopper : that it has neither mouth nor outlet for food ib. 



33. The wings of insects •• •• 33 



34. The beetle. The glow-worm. Other kinds of beetles . . . . 33 



35. Locusts 35 



36. Ants 37 



37. The chrysalis 39 



38. Animals which breed in wood . . .. 40 



39. Insects that are parasites of man. Which is the smallest of 



animals ? Animals found in wax even . . _. w. 



40. An animal which has no passage for the evacuations ib. 



41. Moths, cantharides, gnats— an insect which breeds in the snow. . 41 



42. An animal found in fire— the pyrallis, or pyrausta 42 



43. The animal called hemerobion • • ib- 



44. The nature and characteristics of all animals considered limb by 



limb. Those which have tufts and crests 43 



45. The various kinds of horns. Animals in which they are moveable 44 



46. The heads of animals. Those which have none 46 



47. The hair •*• 



48. The bones of the head 4 < 



49. The brain %b - 



50. The ears. Animals which hear without ears or apertures . . . . 48 



51. The face, the forehead, and the eye-brows 49 



52. The eyes— animals which have no eyes, or have only one eye . . ib. 



53. The diversity of the colour of the eyes . . _ 50 



54. The theory of sight —persons who can see by night ib. 



55. The nature of the pupil— eyes which do not shut 52 



56. The hair of the eye-lids ; what animals are without them. 



Animals which can see on one side only 54 



57. Animals which have no eye-lids 55 



58. The cheeks ih - 



59. The nostrils «*■ 



60. The mouth; the lips; the chin; and the jaw-bone 56 



61. The teeth ; the various kinds of teeth ; in what animals they are 



not on both sides of the mouth : animals which have hollow teeth ib. 



62. The teeth of serpents ; their poison. A bird which has teeth . . 57 



63. Wonderful circumstances connected with the teeth 59 



64. How an estimate is formed of the age of animals from their teeth 60 



65. The tongue ; animals which have no tongue. The noise made 



by frogs. The palate 61 



66. The tonsils; the uvula; theepiglossis; the tracheal artery; the gullet 62 



67. The neck ; the throat; the dorsal spine 63 



68. The throat ; the gullet ; the stomach . . 64 



69. The heart ; the blood ; the vital spirit . . ib. 



70. Those animals which have the largest heart, and those which 



have the smallest. What animals have two hearts . . . . 65 



71. When the custom was first adopted of examining the heart in 



the inspection of the entrails 66 



