It may also become a cruelty, to describe varieties under 

 different specific names, in as far as it may lead to fatal con- 

 sequences. In my endeavour to make my work most useful, 

 I had taken in, in general, such varieties only, especially of 

 the well-known species, as should add another example, 

 rather than become a counter-part of another work. For 

 example, of Agaricus glutinosus of Curtis's Flora Londi- 

 nensis, I have figured varieties found under different circum- 

 stances from those which he has figured, and have added 

 a conical variety to shew one of its extremes, and for the 

 useful purpose of identifying it in the state in which it was 

 gathered, and had nearly proved fatal to a family that had 

 eaten of it, (see tab. 248) as has been the case at Mitcham 

 in Surrey, and Christ-Church in Hants; see description. 



I intend to finish models of the more particularly poison- 

 ous Fungi, and of those which are edible, to prevent, as far 

 as possible, future mistakes, for the use of the Public, and 

 request those who have opportunities to help in their investi- 

 gation, to favour me with information. I hope also that such 

 persons will exert themselves to make the poisonous ones 

 known as much as possible. Every Clergyman, Gentleman, 

 Physician, and Apothecary, or public character looked up to 

 for information, throughout the kingdom, should get ac- 

 quainted with them for this philanthropic purpose ; for 

 which, and for other useful purposes, I have long kept my 

 Collection open for public inspection every first and third 

 Tuesday in each month, from Eleven until Three o'Clock. 



