CONTENTS. 



i*i ♦ -^ 



The Prologue, in which I mention the 

 time I discovered this secret, and what 

 gave rise to the desire I had of making 

 such a discovery, and why I did not wish 

 people to know that I had made it, as well 

 as my reasons for making use of smells, 

 &c., &c. 17 



Poinsett's Certificate — he then was Minister 

 Plenipotentiary of the United States of 

 America to Mexico. 26 



General Guerreros' Letter of Recommen- 

 dation. 26 



The Marquis de Rayas' Certificate. 27 



Observation upon Horses in general, and 

 w^hat led me to the discovery of breaking 

 them in a few hours. 31 



The Secret. Tn the explanation of the Se- 

 cret is related the astonishing effect it had 

 upon a Avild boar, which I tamed in a few 

 hours, in the state of Neuvo Leon. 35 



