SILK-WORMS. 
18.5 
have risen, there remain on the wickers those 
that are weak and lazy, who do not eat, do not 
seem of the disposition of those that have risen, 
but remain motionless on the leaves, without 
giving any sign of rising. 
The care of these silk-worms being quite dif- 
ferent from "that required by the others, they 
should be taken away, and put either in the 
small laboratory, or in any dry clean room, of at 
least 73° of heat, where there are hurdles covered 
with dry clean paper, and the hedge ready pre- 
pared for them. 4.) 
As soon as they are thus placed, some will rise 
directly, others will eat, and then rise, and so on, 
till all will have risen. These worms will have 
acquired the vigour and stimulus they wanted, by 
being put in a warmer and much drier apart- 
ment. 
The great mass of silk-worms in the large labo- 
ratory, in evacuating themselves, often soil one 
another with excremental matter. Moisture, as 
I have frequently observed, is very pernicious to 
these insects, and, if once wetted, it checks their 
transpiration ; that alone will destroy their vi- 
gour, and indispose them to rise. As fast as the 
hedges and clumps are formed, the worms that 
rise on them shed liquid matter upon the litter 
and paper, where lay the later silk-worms, which 
increases their languor and listlessness, even sup- 
