CONTENTS. 



XV 



CHAPTER XVII. 



INSECTS AND AliACHNIDA. 



Great number and variety of Objects affo; 



Structure of Integument, 



Tegumentary Appendages, 



Parts of the Head, 



Circulation of the Blood, 



Respiratory Apparatus, 



Wings, 



Feet, 



Stings and Ovipositors, 



Eggs, 



Acarida, 



Parts of Spiders, . 



i-ded by Insects, 



CHAPTER XVIII. 



VERTEBRATED ANIMALS- 



Primary Tissues, 



Bone, .... 



Teeth, .... 



Scales of Pish, 



Hairs, .... 



Feathers, .... 



Hoofs, Horns, &c.. 



Blood, .... 



White and Yellow Fibres, 



Skin, Mucous, and Serous Membranes, 



Epidermis, 



Pigment-Cells, 



Epithelium, 



Fat, ..... 



Cartilage, 



Grlands, .... 



Muscle, .... 



Nerve, .... 



Circulation of the Blood, 

 Injected Preparations, 

 Vessels of Respiratory Organs, 



PAGE 



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 5H 

 516 

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584 

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 598 

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 619 

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CHAPTER XIX. 



APPLICATIONS OP THE MICROSCOPE TO GEOLOGY. 



Fossilized Wood, Coal, 

 Fossil Foraminifera, Chalk, 



Nummulites, 



Orbitoides, . 

 Organic materials of Rocks, 

 Structure of Fossil Bones, Teeth, &c.. 



625 

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 634 

 637 

 639 

 641 



