IV PREFACE. 



States north of Virginia" Doctor Darlington's " Flora 

 Cestrica," Wood's " Class Book of Botany," Gray's "Botany 

 of the Northern United States/' and Barton's Botany and 

 Flora," 



Such as tins flora is, I now submit it to the public. That 

 it will be found free from errors, I hardly expect. I have, 

 however, prepared it with much care and study, having devoted 

 untiringly to the study of botany, for several years, and to 

 the preparation of this work, all the hours of leisure which 

 my occupation as a mechanic permitted me to enjoy. In 

 conclusion I have only to ask of those who may discover 

 special imperfections in the work, or who may be able to 

 suggest additions important to be made, with descriptions of 

 genera and species indigenous to our State not described in 

 the present work, to communicate their suggestions to me, 

 and should another edition be called for, I shall endeavor to- 

 rectify its imperfections to the best of my ability. 



EL R, NOLL. 



Lewisbueg, March, 1851. 



