TEMPERATURE, MOISTURE, LIGHT 



sible temperature; and if there is no neces- 

 sity of hastening the bearing period, a tem- 

 perature below 50° F. for a week or two be- 

 fore the buttons begin to form will be ad- 

 vantageous. 



In connection with the relation of mush- 

 room growing to temperature, it should be 

 stated that there are unquestionably species 

 of edible mushrooms which are found in 

 their native habitats maturing readily at 

 temperatures unfavorable for Agaricus 

 campestris, some at higher temperatures, 

 some at lower. It remains to be determined 

 whether any of such species are capable of 

 being grown economically. 



Moisture. From what has been said al- 

 ready, it is evident that the moisture fac- 

 tor is one which should be considered as 

 next in importance. With an atmosphere 

 saturated with moisture, and with water 

 dripping from the walls everywhere, the 

 environment would be anything but favor- 

 able. On the other hand the atmosphere 

 should always contain a fairly high relative 



67 



