GROWING MUSHROOMS IN GREENHOUSES. 
51 
ground, and protected from strong light by having mus- 
lin tacked over the openings between the benches and the 
beds alongside the pathways. But his crop was suffering 
from drip. Mr. Wilson told me he could not begin to 
Fig. 15. Mr. Wm. Wilson’s Mushroom Beds. 
supply the demand. He says whatever he makes on 
mushrooms is mostly clear gain. They occupy space 
that otherwise would remain unoccupied, and he needs 
the manure and the loam in his florist business, and it is 
in better condition for potting after it has been rotted in 
the mushroom beds than it was before it was used for 
this purpose. 
Drip from the Benches. —This must be prevented 
from the beds above, else it will soak or chill, and in a 
large measure kill the spawn. I have seen many exam¬ 
ples of this evil. The beds would be full of drip holes 
all over their surface, and although a good many mush¬ 
rooms here and there about the bed might perfect them¬ 
selves, multitudes only reach the pin-head condition—or 
possibly the size of peas—and then fogg off in patches. 
It is not one or two little mushrooms in a clump that 
fogg off, but where one foggs off all of the little ones in 
