4 MUSHROOM CULTURE. 



As it is of importance in mushroom-growing that the air 

 oi the house should be kept moderately moist, the under- 

 side of a slate or tile roof should be lathed and plastered. 



Fig. 3. View of unheated mushroom -house. 



Figure 3 represents a mushroom-house suitable for 

 people of small means,, or those who cannot adopt plan 

 No. 1. It is designed! with a view to growing mush- 



Fig. 4. Section of preceding figure. 



rooms during the greater part of the year, without 

 the aid of artificial heat. To this end it is constructed in 

 such a way as not to be affected by changes of the ex- 



