103 
elevated bed. In nature there is a continual effort to equalize 
extremes, whether it be the high temperature of the hotbed, or 
the low of the ice-house; and to counteract such action 
requires all the skill of the forcing gardener. Under such 
circumstances, therefore, we have been induced to plan a pit, 
which, with the accompanying box or frames, is about two- 
thirds below the ordinary ground level, and one-third above it: 
this we shall here illustrate by a sketch, with details. 
Before proceeding farther, we would premise that at page 
99, in glancing at the outlines of our proposed simplification, 
we addressed ourselves to two classes of our readers; and in 
order to be distinctly understood, by conveying definite ideas, 
we think that it will be most expedient to explain the use of 
these structures in very small gardens, where, at the most, only 
two or three of them would be employed ; we can then enter 
into the spirit of the subject; and show how, as we observed at 
page 100, they may be made applicable 'as a subordinate 
system of forcing and protection in the most extensive estab- 
lishments.’ 
We now submit a sketch of one of our protectors or acceler- 
ators, placed on the pit; and will then describe its character, 
and mode of operation. 
protectors or accelerators, are precisely of the same size in 
every respect; for the brick pits being fixed structures, the 
portable frames or protectors are designed to be capable of easy 
292. AUCTARIUM. 
