PROTECTION OF PLANTS FROM FROST. 
41 
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plants standing in the open air ; they combine the two desirable 
qualities of effectiveness and neat appearance. 
The cylindrical form is composed of straw, worked upon up¬ 
rights, which continuing below, form legs to be driven into the 
ground for the support of the covering ; it is made in separate 
halves, as being more easily applied, and also for the convenience 
of stowing away when not wanted. When this covering is to be 
removed, the half on the northern side of the plant should be 
taken away two or three days before that on the other side, in 
the manner and for the reason before expressed when speaking of 
mats as applied to the same purpose, and being made with a 
detached top, air can be admitted on favorable occasions, even 
before it would be judicious to remove the sides. 
The other tent-like figure is made of waterproof cloth, sup- 
i. 4 
