PREFA CE. ix 



the Sorbonne, who, being at once an accomplished botanist 

 and an excellent draughtsman, has given quite a special 

 character to the drawings of the plants ; also M. Mesnel, 

 who has drawn the zoological illustrations with much taste ; 

 and, lastly, M. Emile Bayard, to whose pencil we owe some 

 charming landscapes. 



F. A. POUCHET. 



