as if it had beeu burned, are a congeries of a most beautiful microscopic object, Sphteria stigma ; and these 

 bits of buff velvet are TlielepJwra incarnata. So that not a space upon the bark of our perishing Oakling 

 but is occupied by the parasitic life it nourishes, wliile the very cuticle itself, though loaded superficially 

 with Lichens, is broken up and pushed off by various eruptive Spkcerias, wliich have their origin deeper ; 

 here is Sphceria taleola doubtless, lying perdue beneath these little crater-Kke orifices ; remove the outer 

 peUicle of bark carefully, there, those black spots with wliite centres are the Fungus in question. 



All these subjects are well worthy microscopic investigation, and although it has been determined that 

 the present work shall embrace only such Funguses as do not necessarily render the use of one indispensable, 

 still an incidental allusion to minuter objects, as exquisite in their finish and developement as the most 

 gigantic, cannot be misplaced. It is not to be supposed that all these genera are present on all sticks, but 

 so great is the number of species frequently to be discriminated, that we assure the student the particular 

 specimen of wood now lying on the desk, not only exlubits the various Funguses and Lichens indicated, 

 but some Mosses to boot ! 



