138 Dr. Wollaston's Essay on Fairy-Rings. 
another year or two would probably reunite the two extre- 
mities into one curve surrounding the tree. 
Being desirous of ascertaining in what length of time a soil 
might again recover the power of producing a fresh crop of 
fungi, I cut a groove, in one or two instances, along the dia- 
meter of a mushroom-ring, and inserted a quantity of spawn 
taken from its circumference, with the hope of seeing it vege- 
tate for some distance near the center ; but the experiment 
failed altogether : and as I shortly after quitted my residence 
in the country, I had no opportunity of repeating the experi- 
ment, and must leave it to be prosecuted by those who are 
more favourably circumstanced. 
