TO 
JOSEPH SABINE, Eso. F.R.S. L.S. &c. &c. | 
THE ABLE AND DISINTERESTED 
SECRETARY 
OF THE 
HORTICULTURAL SOCIETY OF LONDON, 
WHO HAS LABOURED WITH THE MOST UNWEARIED ZEAL, 
BOTH THERE, AND IN HIS PRIVATE CAPACITY, 
FOR THE ADVANCEMENT OF 
BOTANY AND HORTICULTURE, 
THE PRESENT VOLUME 
IS INSCRIBED, 
IN TESTIMONY OF HIS 
UNFEIGNED REGARD AND ESTEEM, BY 
THE AUTHOR. 
DecemBer |, 1829. 
