GROWIKG MUSHROOMS Itf MUSHROOM HOUSES. 37 
crop of mushrooms in that house as one could wish to 
look at. 
The interior arrangement of the mushroom house 
may resemble that of the mushroom cellar. Beds may 
be made alongside of the walls and, if there is room, 
also along the middle of the house, and shelves erected 
in the same way as in the cellar. But in the case of 
cold, thin outside walls, the shelf-beds should not be 
built close against them, but instead boxed off about two 
inches from the walls, so as to remove the beds from the 
chilling touch of the wall in winter. Economy may 
suggest the advisability of high mushroom houses, so 
that one may be able to build one shelf above another, 
until the shelves are two, three, or four deep. But this 
is a mistake. The artificial heat required to maintain a 
temperature of 55° in midwinter in a house built high 
above ground would be too parching and unsteady for 
the good of the mushrooms; besides, a second shelf is 
inconvenient enough, and when it comes to a third or a 
fourth the inconvenience would be too great, and over¬ 
reach any advantage hoped for in economy of space. 
An unheated mushroom house must be regarded as a 
shed, and treated similarly, as described in the following 
chapter. 
In large, well appointed, private gardens, a mushroom 
house is considered an almost indispensable adjunct to 
the glasshouse establishment, and is generally built 
against the north-facing wall of a greenhouse. In this 
way it gets the benefit of the warm wall, and may be 
easily heated by introducing one or two hot-water pipes 
from the greenhouse system; besides, in winter the 
house may be entered from the glass house or adjacent 
shed, and in this way be exempted from the inclement 
breath of the frosty air that would be admitted in open¬ 
ing the outside door. 
Mr. Samuel Henshaw’s Mushroom House.—Mr* 
