189 
the clasting is repeated a second time, imme- 
diately after the first, as the Slugs sometimes 
shed a slimy vesture with the lime, as communi- 
cated under the head of Cauliflower, where the 
history of this animal is more fully delineated. 
BEANS. 
Aphis. — A species of the Aphides, com- 
monly called the Colliar, attacks Beans. It 
appears a near relation to those to which the Cherry 
tree is liable. Its appearance on the Beans is 
seldom before the fore end of June. It takes its 
station principally on the extremity or top of the 
plant, till its family becomes so numerous, that 
the tender parts will not afford i^oom and support. 
The younger pods then are resorted to by those 
animals. By extracting the juices from the young 
pods, and ejecting a glutinous secretion, they prove 
injurious to the crop. 
For their Destruction. — On the appear- 
ance of these insects, at the commencement of 
their reign, or at least before they begin to spread 
over the plant, the tops may be pinched off' with 
the thumb and finger carefully, and put into 
baskets, and afterwards burned or scalded. 
Some attention should also be paid to the state 
in which the plants are. If they are shedding 
their bloom, the sooner the operation takes place 
