SILK-WORMS. 
121 
given until the second meal has been thoroughly 
consumed ; and should the young shoots and leaves 
not be required, they may be given the next 
day. 
Although it is not a general custom to chop or 
cut the leaves for silk-wcrms in this fourth age. 
I have, however, found it very beneficial to give 
it to them, coarsely cut up, not only the first day, 
but also the second and third. I have already 
mentioned, that when the silk-worms are just issu- 
ing from the cast skins, they are weak, and not 
very hungry; fresh leaves, slightly cut up, by 
exhaling a stronger smell, stimulate their hunger, 
and the cut edges are more easy to bite. 
The late-roused silk-worms should be placed 
on hurdles distinct from the earliest worms. 
At the end of this day, the worms begin to 
shew some vigour ; they move quickly to the 
leaves, they grow perceptibly, they lose their 
ugly colours, become slightly white, and assume 
more decided animal action. 
When all the silk-worms are taken out of the 
small laboratory, the hurdles from which they 
have been removed should be well cleaned. 
This should be done quickly, if any of the silk- 
worms are to be put into the small laboratory 
again for the convenience of space. The litter 
should be rolled up in the paper, and taken out, 
but there is no hurry to clean the hurdles, if the 
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