Social Spinning-Caterpillars .... 

 Winter nest of the Brown tail Molli 

 Winter "fats of the Golden-tail Motli 

 Pendulous leaf nests, from Bonnet 

 Nest of Procossiouary Caterpillars 



CHAPTER XVIII. 



Structures of Spiders . . . 



Spiders not properly insects, and why . 

 Apparatus for spinning. 

 Extraordinary number of spiuncrules . 

 Attachment of the end of a thread 

 Shooting of the Lines of Spiders . . . 



1. Opinions oi Kedi, Swammerdam, and Ktrby 



2. Lister, Kirby, and White . 



3. La Pluchc and Binglcy 



D'Isjonval, Murray, and Bowman 



5. Experiments of Mr. Blackwall 

 His account of the ascent of gossamer . 



6. Experiments by J. H 



Thread supposed to go off double . 

 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 tho.Houso-Spider 



Geometric Spiders . . 

 Mason-Spidors . . . • • 



Ingenious door with a hinge . 



Nest from the West Indies, with spring hinge 



Raft-building Spider 



Diving Water-Spider 



Observations of M. Clerck 

 Cleanliness of Spiders 



Structure of their olaws 



Fanciful account of them patting their webs 



Proceedings of a Spider in a steam-boat . 



CHAPTER XIX. 



Structures of Gall-flies 



Berry-gall of the onk leal, &c. I. 

 Ingenious mechanism of the ovipositor . 

 Opinions of Naturalists as to the cause of galls 



Opi 



Bedeguar of the rose . 



Artichoke-gall of the oak £| 



Leaf-gall or Dyer's broom |"J 



Rose-willow 



Rose-hawthorn oqq 



Woolly-gallofthooak *J 



Experiments with the Flies *»* 



Oak-apples ^.J 



Root-galls of the oak "jr 



Woody-gall of the willow *» 



Oak currant-galls ■*" 



