MUSH ROOM -SPAWN*. '2 / 



the covering of litter. The makers frequently examine 

 the bricks during the process, and when the spawn has 

 been found to spread throughout a brick like a fine 

 white mould, it is removed, and allowed to dry for 

 future use in a dark, dry place. If allowed to go further 

 than the fine white mould stage, and form threads and 

 tubercles in the bricks, it has then attained to a higher 

 degree of development than is consistent with preserving 

 its vegetative powers, and therefore it should be removed 

 from the bed in the fine mould stage. This is the kind 

 of mushroom spawn mostly in use in our gardens, and it 

 is usually very hard in texture. 



Thereis a kind of spawn usedin some gardens called mill- 

 track mushroom-spawn, which is made in a more simple 



Fig. 12. Mill-track mushroom-spawn. 



manner than the preceding. It would seem to be simply 

 spawn that has spread through the thoroughly amalga- 

 mated droppings of a mill-track. The material is rather 



