PREFACE. XIX 



quences of their explosions ; the author's sentiments 

 as to earthquakes, their extent and direction, the 

 circumstances preceding and attending them, and 

 their different effects in different places. 



The value of this Fourth Edition is very much 

 enhanced, by a number of curious, instructive, and 

 explanatory Notes. These cannot fail of giving 

 great satisfaction to the reader, as they serve to 

 rectify some mistakes, and to set a variety of pass- 

 ages in a clearer light, from the writer's thorough 

 acquaintance with the subjects treated in these 

 voyages. He has also given a very accurate account 

 of those parts of Brazil least known to us; and 

 which may be therefore separated as a useful, as well 

 as proper, supplement; and render the work, taken 

 altogether, as complete as even a critical reader can 

 desire. 



b g CON- 



