particular end in view. If this treatise should be adopted for general use in schools or families, the teacher at least will probably be furnished with those works, and will accommodate their contents to the use of the pupils. I am aware of the want of a systematical English description of British plants, on the principles of this Introduction; but that deficiency I hope as soon as possible to supply. In the mean while, Dr. Withering's work may serve the desired purpose, attention being paid only to his original descriptions, or to those quoted from English writers. His index will atone for the changes I cannot appprove in his system. Wherever my book may be found deficient in the explanation of his or any other terms, as I profess to retain only what are necessary, or in some shape useful, the Language of Botany, by Pro-
