PREFATORY REMARKS. 5 



longer, probably until the return of Captain Parry from the arduous enterprise in which 

 he is now embarked. 



I have, however, to express my regret for the delay that has already taken place, as it 

 has prevented the appearance of the valuable memoirs in other departments of Natural 

 History, which have been long ready for publication; and also as it has till now deprived 

 Botanists of the excellent figures so admirably illustrating the structure of the plants 

 selected for engraving, and for which it is hardly necessary to add that I am indebted to the 

 friendship of Mr. Bauer. 



