Reviews and Extracts. — Horticulture, S)C. 
405 
for tlie adiuission of air, when necessary. In the upper part of the roof, there 
should be tvTo or more windows of a small size, with sliding hoards to exclude 
the light when not wanted. (j5 
The door-way should be of a 
small size, and if the bouse is 
from tliirty to forty feet long', 
it should he placed about the 
middle of the front side, ('') 
and secured with litter in cold 
weather. From the door way 
to the back wall should be a 
trench, (/) 18 inches wide, 
and two feet deep, to be filled 
with hot dung-, to secure the 
heat of the house. Shelves (g)^^ 
two feet broad, may be set up 
aoainst the back and end walls 
A' 
A.C. SC. 
It will also be necessary to lay flues in, 2 feet deep and 18 inches wide, formed 
of boards or flat stones. (/;) Those which run ag'ainst the walls can be made by 
simply placing in an inclined position boards or flat stones against the 
wall, (j) The bed is made entirely of dung", prepared by turning for 
about three weeks or a month. The beds are to be made about 14 inches 
thick, and as close and compact as treading and ramming can make them. 
VV'hen they have settled two or three days, again beat and tread them, until redu- 
ced to 10, and not more than 12 inches thick. The beds on the shelves must be 
(after they are well beaten down) about five inches thick." 
" Those who are inexperienced in the culture of the Mushroom should plunge 
a thermometer into the middle of the bed, and if a higher temperature is indicated 
than 80 or 85 degrees Fahrenheit, the bed must be suffered to remain until the 
heal has subsided to that point, which is the best temperature for spawning. If, 
however the heat indicated by the thermometer, be less than 80, which is not very 
likely to happen, it will be proper to add a little more fresh dung to the surface, 
which must be finished ofi'as before." 
" For earthing the bed, equal parts of strong loam,and rotten dung should be 
used. It should be laid in a heap, and by frequent turnings be thoroughly incor- 
porated. Before using the compost, a sixth or eighth part of leaf mould may be 
added, and the whole [);issed through a fine sieve." 
