GROWIXG MUSHROOMS IN GEEENHOUSES. 



53 



ordinary hotbed frames and sashes, as described in a 

 previous chapter. Light wooden shutters — made of one- 

 half inch or five-eighths inch pine — may be used for the 

 same end, and will last for many years. 



The beds under the greenhouse benches may be made 

 up in the same way as are beds anywhere else; that is. 



f^~-Wr-y-i^''"j' 



^^Sk, 



Fig. 17. Ridged mushroom Bed. 



flat upon the floor and between two boards set on edge, 

 as seen in Fig. 16, or in ridges under the high or middle 

 benches, as in Fig. 17, or in banked beds against the 



<4-| «■■■!,■- . , , 



FIG. 18. BANKED BED AGAINST A WALL. 



back waU, as shown in Fig. 18. Generally the flat bed 

 is the most convenient to make and take care of. 



In open, airy greenhouses it is always well to inclose 

 the mushroom beds in box casings and with sash or shut- 



