S3 
VARIOUS AUTHORS’ RECIPES. 
Sir Joseph Banks speaks of a valuable 
discovery having been made for their destruction, 
viz. the application of spirits of tar to the bark 
of the tree. 
Mr. Harrison says, “ this insect may be de- 
stroyed by attending- to the follovring directions : 
When wall trees, &c. infested by it are pruned 
in autumn, all such parts as are cut off must be 
burned, and the nails and shreds be boiled. When 
the tree is completely loosened from the wall, it 
must be swept and anointed with composition. 
The composition must be applied by means of a 
soft brush. The following are the ingredients of 
which the composition is made : To four gallons of 
water add one pound of soft soap, two pounds of 
common sulphur, half an ounce of black-pepper, 
and one gill of train oil, let these be mixed toge- 
ther, and boiled for twenty minutes over a slow 
fire. It must be laid on in a tepid state, or wluit 
is called new-milk warm.” 
Mr. Peter Barnet, of the Caledonian 
Horticultural Society, recommends as follows : “ I 
collected a considerable quantity of chamber ley, 
and when it had been kept for several weeks, I 
one afternoon uimailed the affected trees, and with 
the garden engine washed them with the stale ley. 
In the following summer the trees made fine wood 
in every part, and the next year again they bare 
the best crops I ever saw, and they now are ns 
