SILK-WORMS. 
247 
2. Some there are which give a great quantity 
of fine sound leaves, which can hardly be distin- 
guished from the grafted mulberry-leaf. 
3. The wild mulberry-tree of a good sound- 
leaved quality, may be grafted on the wild mul- 
berry-tree of the inferior sort with indented leaves. 
4. As it is the nature of the wild mulberry to 
have a great quantity of small branches, that 
thicken the tree too much, they should be well 
pruned and thinned, which will also strengthen 
the tree. 
5. The hedge rows of wild mulberry-trees should 
all be grafted with the best sorts of the wild mul- 
berry, and they should be planted in every spot 
where they are not likely to injure any other pro- 
duction. 
If it is required to increase the production of 
cocoons, it is indispensably necessary to make 
every effort to multiply the production of the 
mulberry-leaf, either grafted or wild ; and in fol 
lowing the plan 1 have given, great advantages 
must inevitably result. 
Many cultivators rear their silk-worms until the 
third moulting, or casting, and sometimes until 
the fourth moulting, with the leaves of the wild 
hedge-row mulberry, and the insects eat it with 
much more eagerness, than that of the grafted 
mulberry, and it imparts a much greater fragrance 
to the laboratory. 
M 
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