220 
THE AMATEUR’S KITCHEN GARDEN. 
E, over which is a la3 r er of straw ; F is a vacant space beneath 
a rough-thatched, roof carried to one centre pole, and above 
the potatoes. With an inlet of air in mild weather at about 
two places round the bottom, and with an outlet at the apex, 
a. small current of air may be kept up to carry off the foul 
air which is always generated where there is collected a mass 
of vegetable matter, and this open space between admits of 
its being carried off most effectually, while the inner covering 
of straw and the thatched roof are a safeguard against frost. 
It may be proper to remark here that exposure to light very 
soon spoils the flavour of potatoes, and continued exposure 
renders them poisonous. 
