PREFACE'S 1

which treats of* the Vegetables used for medical purposes,I have given as ample descriptions as the nature of the workwill admit of, having in view the very necessary obligationwhich the younger branch of that profession are under, ofpaying attention to the subject.

In prosecuting this work, I have been more actuatedby a desire to render to my pupils and others, useful in-formation, than that of commencing Author on such asubject; and as writing for the press has been but verylittle my employment, I trust that an ample excuse will begranted for any errors that may appear, or for the want ofthat happiness of diction with which more able and ac-complished Authors may be endowed.

Botanic Garden,Sloane Street, May 1816.