ance of a
half mushroom served in this way is not attractive.

=Resoiling.=--Once or twice a week during the harvesting period all
loose earth, broken bits of spawn, free buttons, etc., should be cleaned
out where the mushrooms have been picked. These places should be filled
with soil and packed down by hand. All young mushrooms that "fog off"
should be gathered up clean. Some persons follow the practice of growing
a second crop on the same bed from which the first crop has been
gathered. The bed is resoiled by placing about two inches of soil over
the old soil. The bed is then watered, sometimes with lukewarm water to
which a small quantity of nitrate of soda has been added. The large
growers, however, usually do not grow a second crop in this way, but
endeavor to exhaust the material in the bed by continuous growth.

=Use of manure from beds which have failed.=--Manure in which the spawn
has failed to run is sometimes removed from the bed and mixed with fresh
manure, the latter restoring the heat. If the manure was too wet, the
moisture content can now be lessened by the use of dry soil.

=Cleaning house to prepare for successive crops.=--When the crop is
harvested, all the material is cleaned out to prepare the beds for the
next crop. The material is taken out "clean," and the floors, beds,
walls, etc., swept off very clean. In addition, some growers whitewash
the floors and all wood-work. Some whitewash only the floors, depending
on sweeping the beds and walls very clean. Still others whitewash the
floors and wash the walls with some material to kill out the vermin.
Some trap or poison the cockroaches, wood-lice, etc., when they appear.
Some growers who succeed well for several years, and then fail, believe
that the house "gets tired," as they express it, and that the place must
rest for a few years before mushrooms can be grown there again. Others
grow mushrooms successfully year after year, but employ the best
sanitary methods.

=Number of crops during a year.=--In caves or mines, where the
temperature is low, the beds are in process of formation and cropping
continuously. So soon as a bed has been exhausted the material is
cleaned out, and new beds are made as fast as the fresh manure is
obtained. In houses where the mushrooms cannot be grown during the
summer, the crops are grown at quite regular periods, the first crop
during fall and early winter, and the second crop during spring. Some
obtain the manure a