PEKFACE TO THE FIRST EniTION. XI 



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 publisher, 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, Hof- 

 meister, 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 believed that the value of the work as a 

 class-book of botanical science has been materiallv increased. 



London: May 1, 1861. 



