276 STUDIES OF AMERICAN FUNGI. 



to 90 F. or 70 P., if the manure has a "sweetish" or " mushroomy " smell 

 it is ready to spawn. 



Spawn according to directions on page 263. 



Soil according to directions on page 266 ; cover bed with straw or excelsior. 



Second Method. Use horse droppings freed from the coarser material. 

 Proceed as mjirst method. 



Third Method. Use horse droppings freed from coarser material. Pile and 

 pack firmly. Do not let temperature rise above 130 F. When it has cooled to 

 100 P., make up the beds, at the same time mixing in an equal quantity of rich 

 loam or rotted sod. Spawn in a day or two. 



In beginning, practice on a small scale and study the conditions thoroughly, 

 as well as the directions given in this chapter. 



