XU ILLUSTRATIONS. 



Pag« 



24. Magnified view of the boat of gnats' eggs, 75 



25. Female gypsey moths, and modes of depositing their 



eggs, four figures, 81 



26. Females of the brown and gold-tailed moths, two 



figures, 83 



27. Tweezers of the brown and gold-tailed moths, mag- 



nified, two figures, 84 



28. Spiral groups of eggs of an unknown moth, 85 



29. Eggs of the lackey moth wound spirally round a twig 



of hawthorn, natural size and magnified, two figures, 86 



30. Eggs of the coccus, covered with down, and with the 



bodies of the mothers, 89 



31. Magnified cochenille insects, male and female, two 



figures, ib. 



32. Eggs of the hawthorn coccus, covered by the body of 



the dead mother, 91 



33. Ditto, one of these magnified, ib. 



34. Section of ditto, showing the eggs within, ib. 



35. Suspended spiders' nests, three figures, 94 



36. Vapourer moth, male and female, and deposition of 

 eggs, three figures, 95 



37. Drum of the ear, showing that there is no passage 



through it to the brain, 103 



38. Chequered blow fly, 1 10 



39. Abdomen of ditto, opened and magnified, showing 



the coil of young larvae, ib. 



40. Coil of larva; of ditto, partly unwound, ib. 



41. Large gray blow-fly, with the abdomen opened, show- 



ing the young maggots. 111 



42. Breathing apparatus of the maggot of a large gray 



blow-fly, ib. 



43. Spider flies, two figures, 117 



44. Generation of a water-mite, four figures, 121 



45. Hatching of the egg of the garden spider, four figures, 1 24 



46. Egg of the privet hawk moth, magnified, showing the 



inclosed embryo, 125 



47. Caterpillar of ditto, when grown, ib. 



48. Construction of eggs to facilitate the escape of the 



larva;, three figures, 126 



49. Supposed animal and vegetable metamorphoses, 131 



50. Egg of the large cabbage butterfly, 133 



51. Embryo butterflies as they appear in the bodies of ca- 



terpillars, two figures, 135 



52. Femaje of the perfect cabbage butterfly, ib. 



53. Magnified view of a section of the bud of a laburnum, 1 36 



