36 
The Spirits of Tar, as stated by Sir Joseph 
Banks ; train oil, as recommended by Sir G. S. 
Mackenzie, and verbally by many others, and I 
may add spirits of turpentine, as proved by my- 
self, and no doubt spirits of any description will 
completely destroy this insect, and may be applied 
with some degree of safety to the trunk of the tree, 
though they prove injurious to the bud and small 
branches, applied in a dormant state, and en- 
tirely fatal to the leaves and ends of the young- 
shoots, when applied at a time when the sap is in 
motion. This remedy would prove too expensive 
to be generally resorted to. 
Mr. Harrison’s Recipe (leaving out the 
sulphur and black-pepper, which are of no use) 
might be usefully applied at the back end of the 
year, but would be too powerful for spring or 
summer application. 
Barnet, Forsyth, and Abercrombie 
give information neai'ly alike. Suds by them- 
selves ai-e not sufficiently powerful to destroy the 
Aphis, The urine proves injurious to the leaves 
and shoots ; and I believe both the ingredients 
together will not destroy this vermin. 
Hay, like Harrison, introduces sulphur 
into his mixture, which would be better spared : 
his other ingredients would be of service, providing 
they are not too strong for the buds, &c. j but not 
being acquainted with the Scots measure, I shall 
stop here without farther remarks. 
Various Caterpillars. — T he tirst of this 
