CONTENTS. V 



Page 



Lob-worm 64 



Kespiration in Scrpulye. — Habits of the Erranles G5 



Sea Long-worm, Sea-mouse 06 



Hair-worm, and traditionary Error. — Luminosity of some Annelida 67 



CLASS IL— CIKRIPEDA— 13ARNACLES AXD ACORN SHELLS. 



Tradition respecting Barnacles 69 



Young state of Barnacles and of Acom-shells 70 



Their Transformations. — Formerly classed with MoUusca 71 



Cheapness of the Pleasures of Natural History 72 



CLASS IIL— CRUSTACEA— CRABS, LOBSTERS, SHRIMPS, &c. 



Name, Distribution, Form, Characteristics 73 



Reproduction, Respiration 7-1 



Vision, Eyes of Trilobites 77 



Metamorphoses '^8 



Land-crabs 80 



Classiiication. — LhnuJus or ELing Crab 81 



Spider-crabs 82 



Edible Crabs 83 



Pea Crabs.— Hermit Crabs 84 



Lobster Spiny Lobster 85 



Cray-fish: its Food, Habits, Change of Shell 86 



Shrimps. — Prawn 88 



Sand-hopper. — Cyclops 89 



Daphnia. — Limnoria 90 



Lernxa. — Opossum Shrimp, as shown by the Microscope 91 



CLASS IV INSECT A— INSECTS. 



External Structure 93 



Circulation and Respiration 94 



Nervous System 96 



Senses 97 



Metamorphoses 100 



Food, Digestive System 103 



Mouth 104 



"Wings and Wing-covers 105 



Enumeration of the several Orders 106 



Okdeu I CoiJ!OPTi:ir,v — Beetles 107 



Great Water Beetle Death-watch 107 



Glow-worm. — Dor-beetle 108 



Sacred Beetle.— Tiger Beetle 109 



Cockchafer— Nut Weevil .-. 110 



Bur}-ing Beetle Number of Coleoptcra Ill 



Order II. — Okthoptera — Crickets, Locusts, etc 112 



Leaf Insects 112 



Mantis 113 



Crickets. — Cockroach 114 



Locust 115 



