iv 
COIS^TEOTS. 
Chap. P^^q 
29. The generation of spiders 29 
30. Scorpions ijj 
31. Thestellio .'. si 
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 ib, 
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 ib. 
48. The bones of the head 47 
49. The brain ib. 
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 . . ib, 
59. The nostrils ib, 
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 
ii 
