CH. VI.] INDIAN AND OTHER MOTITS. 109 



lbs. oz. 

 Brought forward . . . 1504 8 



by evaporation and other causes, be- 

 sides sorting and picking, as above 

 stated, 105 



Total, 1609 8 



With these precautions, it is found that in thirty- 

 nine days the worm becomes 9500 times heavier, 

 \vhile in twenty-eight days it is increased forty 

 times in length. In the last twenty-eight days of 

 its existence, viz., from the period of its greatest 

 development as a caterpillar until its death as a 

 moth, it gradually diminishes in length a fifth, and 

 in weight about thirty times. 



CHAPTER VI. 



NATtTRAL HISTORY OP INDIAN MOTHS AND OTHERS REARED 

 FOR THEIR SILK. 



Tusseh Silkworm, its Metamorphoses, its Plight, Manner of 

 Winding the Silk—Jartoo Silkvjorm, their Habits — Arriiidy or 

 Arundi Silkworm, Manner of Rearing, its Metamorphoses, 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 Spinning, Number of Spiders, Eggs', Quantity of 

 Silk, Weight of the Bags. 



Dr. Roxburgh informs us that the East Indians 

 possess three or four species of moths, from the 

 cocoons of which they have been in the habit of 

 spinning coarse kinds of silk. 



The first is termed the Tusseh silkworm, or 

 Bughy, of the natives of the Burbhoom Hills (Pha* 

 l&na paphia), which seems to have been eniDloved 



Vol. II.— K ^ ^ 



