PREFACE TO THE SECOND VOLUME. 
The friendly reception ^iceorded the first volume of my Travels, a 
labour that entailed sacrifices and troubles of every description, 
necessitates the expression of my sincere thanks to the honourable sul>- 
scribers. 
Besides that, 1 feel forced to prot<'ct my publisher from thc- 
reproach that might be levelled at him by the subscribers for the original 
plan of the work having been exceeded, and the cost thereby increased. 
While fully and gratefully recognising the conspicuous merit which 
several of our most famous learned men are deser'ving of in connection 
with the technical ])Oi tion of my book, I venture to submit that its en- 
largement consequent on the thoroughness of their scientific investiga- 
tions is quite as much in the interests of knowledge as in those of the 
subscribers themselves. 
At the same time, it is my bounden duty to take upon myself the 
entire responsibility of having enlarged the original scope of the work, 
as well as to guard and al)Solve my publisliei- from every misunderstand- 
ing: with the most unselfisli rculincss, he has paid every conceivable 
attention to the general get-u]> of the volume. 
For the reasons above given, it was found impossible to find s])ace in 
the second volume for that im])ortant portion of the work, the Fauna 
and Flora of Guiana. Furthermore, the forms new to science 
proved so much more numerous than could possibly have been anticipated 
that I found myself forced to have this compilation of the Animals and 
Plants issued in a third and sepanate volume. 
Unfoi'tunately, under these circumstances the Puldisher, if only 
on the chance of covering the consideralde cost of the undertaking, 
cannot help charging a moderate increase in ])rice. 
Althougli the Fauna is ali-ciHly set up in type, and only [lie Flora 
still remains, T thought that ilie issue of the second volume ought 
not to be postponcfl until the comitlciion of the whole, which latter 
the honourable snbscr11)ers can count upon l>eing fixed by next ISIUI- 
Rummer Day. 
lUCHARD HOHOM7.TTROK. 
Berlin, March 1848^ 
