xii PREFACE TO THE SECOND EDITION. 
and setting this interesting tribe of insects ; 
with a description of the instruments made use 
of for that purpose, which renders the third 
an indispensable companion to the two first 
volumes. 
The Author has given a farther account of 
Silk, and a representation of that splendid in- 
sect, the Tussch Moth of Bengal, with its cater- 
pillar, one of those laryee which produce silk. 
