46 
THE ART OF REARING 
These wicker trays should be placed horizon- 
tally against the wall, supported upon two pieces 
of wood, fastened into the wall. When there are 
many of these wicker trays to be disposed of, they 
should be put one above another, with an interval 
of about twenty-two inches between them. These 
trays are for the purpose of holding the boxes in 
which the eggs are to be hatched. The boxes must 
be so disposed as to allow of easy inspection, that 
they may be examined as often as necessary. Care 
should be taken that the wicker trays be not too 
close. 
4th. A spoon (Fig. 8.) ; it is of a shape con- 
venient for stirring the eggs well. 
5th. Several thermometers. The thermome- 
ters may be hung in various parts of the stove- 
room, or still better if laid by the side of the 
boxes, indicating the precise temperature of every 
part of the stove-room. For it must be observed, 
the temperature varies in different parts of the 
stove-room, particularly between the part next 
the stove and that nearest the door. This obser- 
vation may be of use, as it may enable the culti- 
vator either to force or retard the silk-worms by 
some days ; thus to hatch them as the mulberry 
leaf becomes fit for their food, which in some 
soils is earlier than in others. 
6th. A few light portable trays, with handles, 
easy to move (Fig. 9.) ; they are useful for mov- 
