INTRODUCTION. xiii 



house on his back, and less beautiful 

 than sea shells, yet they are interesting 

 and desirable, from being seldom at- 

 tended to. Ill Brazil, at the royal farm 

 at Santa Cruz, where I resided some 

 months, holding a high official situation, 

 I adopted what I here recommend, and 

 succeeded to the utmost of my wishes. 



