CONTENTS

PAGE
CHAPTER I.
The Pocket Lens, the Dissecting Microscope, andsome simple Appliances[11]
CHAPTER II.
Arthropods and their Classes.—The MarginedWater Beetle; the Great Water Beetle; theCocktail Beetle[27]
CHAPTER III.
Cockroaches; Earwigs; the Great Green Grasshopper;the Water Scorpion; the Water Boatman; Corixa[63]
CHAPTER IV.
Spiders, Mites, and Myriapods[96]
CHAPTER V.
Crustaceans.—Prawn, Shrimp, Mysis, Crabs; Amphipods; Isopods[128]
CHAPTER VI.
Aquatic Insect Larvae[157]
Index[189]