( 42 )
excavated earth be used, being careful, first to break it fine quite down to the bottom of the bed, that no part of it may be lost under ground; then begin the casing or coat, first along the bottom, continuing it regularly up the sides of the bed, beating it lightly with the back of the spade in laying it on, thereby fixing it even and smooth: thus proceed regularly over each side, both ends, and the top, smoothing the whole in a neat manner.
Then place down your long, sharp-pointed sticks, in the sides of the bed, for occasionally trying the internal state of the heat, after being closely earthed over, in order to discover when to apply the covering of litter, &c.
The covering of litter will be required as soon as you discover that there is no danger of
