mistake at wliich we must be pardoned for expressing our very innocent surprise. We trust this error will 

 be amended, to the great gratification of our publisher, our own satisfaction that in Mycology, as in mutton, 

 Vappetit vient en inangeant, and to the relief of readers who are annoyed at the tautological repetition of 

 matter, not new to them, although needful for Second Series-ists. 



Agaricus d/ryinus is an autumnal or late summer fungus; A. ostreatm succeeds it; A. euosmus is 

 invariably a spring production. We are not fond of raising questions or making doubtful suggestions in 

 cases beyond the reach of our obsernng powers, but we may allow ourselves to hint, that the quality of these 

 various species, as weU as the period of their development, may depend on their habitat. For instance, 

 autumnal funguses are more likely to be fed from the juices of the living tree at the season when they are 

 no longer taken up for its natural duties, and perhaps the juices so converted are more wholesome than the 

 pabulum afforded to A. euosmus by a dead stump saturated with rain, which is the site it prefers ; and again, 

 the post, having no leaves to produce, can feed an Agaric in spring, when living timber has something 

 better to do. 



