work. To Lindley's Vegetable Kingdom, Pereira's Materia Me- 

 dica, and to the many valuable articles upon the Anatomy of 

 Plants in Griffith's and Henfrey's Micrographic Dictionary, by 

 the lamented Henfrey, the author is more especially indebted. 

 The last three works will always bear ample testimony to the 

 great research and abilities of their respective authors. 



The author has further to express his obligations to his 

 spirited pubhsher, for the numerous woodcuts which he has 

 liberally allowed him, and to Mr. Bagg for the great skill he has 

 shown in their execution. A large number of these woodcuts 

 have been taken from Maout's Atlas Elementaire de Botanique ; 

 several from Jussieu's Cours Elementaire de Botanique; others 

 have been derived from the works of Schleiden, Mohl, Hofmeis- 

 ter, Lindley, Henfrey, Balfour, &c. ; and many are from original 

 sources. By the judicious use of these woodcuts in the text of 

 the volume, it is beheved that the value of the work as a class- 

 book of botanical science has been materially increased. 



London, May 1, 1861. 



