X 
PREFACE. 
enumerated in the Preface to the First Edition, 
he begs to thank Mr. Alderman Masters, of Can- 
terbury, who, actuated by love of science, has 
furnished him with many hundred fine plants ; 
Dr. W. H. Harvey, of Dublin ; Mr. H. Christy ; 
Dr. R. Wight, of the East Indies ; Dr. Asa Gray, 
of Cambridge University, United States ; and 
numerous other friends, for plants, &c. ; nor must 
he forget to thank E. W. Cooke, Esq. and Mrs. 
S. H. Ward for their embellishments of his little 
volume. 
Clavham Rise., September, 1 852, 
