Vm CONTENTS. 



pany, in which Hairs are mixed with Silk — The Great 

 Eggar Moth Cocoon — AssembHng of Moths — Palisade 

 Cocoon of Hair and Silk — Strength of Cocoons not in- 

 dicative of the Duration of the Chrysalis State — Rough 

 Cocoons formed of Earth and Silk — Elongate Tongue- 

 case of Chrysalides — Polished Earthen Cocoon — Cocoons 

 formed of chips of Wood, and of Leaves, Twigs, and Moss 

 — Extraction of the Moth from the Cocoon — Contrivance 

 of the Larvae to allow the more easy Extrication of the 

 Moth — Regularity in the Time of Appearance of Insects 

 — Extrication of the Chrysalis from the Cocoon — Extri- 

 cation of Perfect Insects from the Caterpillar case, . . 47 



CHAPTER IV.— NATURAL HISTORY OF THE SILK- 

 WORM MOTH. 



Description of the Egg— Caterpillar — Manner of changing 

 its Skin — Sizes from the young to the fuUgrown Worm — 

 Description of the latter— Silk Bags— Manner of forming 

 its Cocoon — Length of the Silk — Descriptionof the Chrys- 

 alis— The Moth— Its Habits— Number of Eggs, ... 78 



CHAPTER v.— HISTORY OF SILK, &c. 



History of its Fabrication — Several kinds of Worms reared 

 in India and America — The Silk Company — Culture of 

 the Mulberry-tree — Laboratory — Air — Heat — Tempera- 

 ture — Light— Of the kinds of Silkworm — Eggs — Hatch- 

 ing — Space — Food — Weight and Length of the fullgrown 

 Worm, 85 



CHAPTER VI. — NATURAL HISTORY OF INDIAN 

 MOTHS AND OTHERS REARED FOR THEIR SILK. 



Tusseh Silkworm, its Metamorphoses, its Fhght, Manner 

 of Winding the Silk — Jarroo Silkworm, their Habits— Ar- 

 rindy or Arundi Silkworm, Manner of Rearing, its Meta- 

 morphoses, its Silk, Manner of Spinning — The Manner 

 of Manufacturing the Silk of Tinea Punctata— Account 

 of the Silk of an Indigenous American Moth — History of 

 preparing Silk from Spiders, kinds of. Manner of Spin- 

 ning, Number of Spiders, Eggs, Quantity of Silk, Weight 

 of the Bags, 109 



CHAPTER VII.— ON LUMINOUS WINGED INSECTS. 



History of the Glow-worm— Description of the Egg— The 

 Larva— Its Cleanliness— The Pupa— The perfect Insect 

 — Difference between the Sexes— The Light— Whether 



