Tlieir tran'fonnations 

 How they make their exit from llie cocoons 

 Parts used in our manufactures 

 History of tlie introJuction of silk 

 Varieties and species of silkworms 

 Emperor-Motli . ... 



Ingenious contrivance of the cocoon . 

 Spinning-Caterpillars continued 



Elastic cocoon of Torlrix chlorana 

 Slender covering of the Gypsey-Moth 

 Cocoon of the Cream-'pot Tiger-moth 

 Experiment with the Dock Weevil 

 Nest of Puss Moth, with cocoons of Ichneumons 

 Cocoon of the Horned Mason-Bee 

 Experiment with Eriogasler lanestris 

 Social Spinning-Caterpillars 



Winter nest of the Brown-tail moth . 

 Winter nests of the Golden-tail Moth 

 Pendulous leaf nests, from Bonnet 

 Nest of Processionary Caterpillars 



CHAPTER XVIII. 



Structures of Spiders 



Spiders not properly insects, and why 



Apparatus for spinning 



Extraordinary number of spinnernles 



AtlachmHiit of the end of a thread 

 Shooting of the lines of Spiders 



I. Opinions of Redi, Swannnerdam, and Kirby 



2. Lister, Kirby, and While 



3. La Pluche and Bingley 



4. D'Isjonval, Murray, and Bowman 



5. Experiments of Mr Blackwall 

 His account of the accent of gossamer 



6. Expeiiments by J. R. 

 Thread supposed to go offdouble 

 Subsequent experiments 



Nests, Webs, and Nets of Spiders 



Elastic satin nest of a Spider 



Evelyn's account of hunting Spiders 



Labyrinthic Spider's nest . 



Erroneous account of the House Spider 



Geometric Spiders 

 Mason-Spiders 



Ingenious door with a hinge 



Nest fioiD the West Indies, with spring hinge 

 Raft-building Spider 



