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CONTENTS. 



PAGE. 



PREFACE, 3 



INTRODUCTORY CHAPTER, 5 



Microscope, 8 



Single Microscope, " 



Compound Microscope, 9 



Solar Microscope 13 



CHAPTER I. 



INFUSORIAL ANIMALCULES. 



Structure, 17 



Classification, 19 



Polygastrica, " 



Rotatoria, 20 



Eyes, 21 



Reproduction, " 



Life and Resuscitation, 22 



Influence of Temperature, 23 



Air, 24 



Poisons, " 



Phosphorescence of the Sea, " 



Colored Tracts of the Ocean, 26 



POLYGASTRIC ANIMALCULES, 27 



Monads, " 



Twilight Monad, " 



Great Monad, 28 



The Green Eye-Monad, " 



The Breast-plate Animalcules, " 



The Revolving Globe- Animalcule, 30 



The Ray-Globe Animalcules, 32 



The Blood-like Astatia, " 



the Blood-red Eye Animalcule " 



The Flowering-cup Animalcules, 33 



The Proteus 34 



Bacillaria, or Stick Animalcules, " 



The Gallionella, or Box-chain Animalcules, 35 



The Striped Gallionella, " 



The Rust-like Gallionella, 36 



The Navicula, or Little-Ship Animalcules, " 



.Green Navicula, " 



1 



PAGE. 



Golden Navicula, 37 



The Swollen Eunotia, " 



Xanthidia, or Double-bar Animalcules,.. .. 38 



The Pyxidicula, or Round-box Animalcules, " 



Zigzag Animalcules, 39 



The Palm Fan-shaped Animalcule, 39 



The Bell-shaped Animalcules, 40 



The Tree- Animalcules, 42 



Trumpet Animalcules, 43 



Purse Animalcule, 45 



WHEEL-ANIMALCULES, OR ROTATOKIA, " 



The Common Wheel- Animalcule, " 



The Crown Wheel- Animalcule, or Stepha- 



noceros, 47 



The Beaded-Melicerta, or Four-leaved Ani- 

 malcule,. . . ., 49 



The Hornwort Limnias, or Water Nymph, 52 



The Elegant Flower-shaped Animalcule,. . . " 



CHAPTER II. 



FOSSIL INFUSORIA. 



Fossil Animalcules of Chalk and Flint,.. . . 56 



Peat Bogs, 59 



Foraminifera, " 



Mud-Banks 51 



Infusorial Dust, 63 



CHAPTER III. 



MINUTE AQUATIC ANIMALS. 



The Polype, 65 



The Round Lynceus, or Monoculus, 69 



The Small Water-Flea, 70 



The Vaulter, 71 



The Larva of a small Boat-Fly, 71 



The Larva of a species of Water-Beetle,. 72 



The Lurco, or Glutton, 74 



Eels in Paste, 75 



The Vinegar Eel, 76 





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