xxxiv 



curious approximations on this object, so 

 important for the philosophical study of 

 the history of man. I flatter myself, that 

 a part of his labors will find a place in this 

 narrative. 



Of those different works which I have 

 here enumerated, the second and third 

 were composed by Mr. Bonpland, from the 

 observations which he made on the spot, 

 in a botanical journal. This journal con- 

 tains more than four thousand methodical 

 descriptions of equinoctial plants, a ninth 

 part only of which have been made by 

 me, and will appear in a separate publi- 

 cation, under the title of Nova Genera 

 et Species Plantarum. In this work will 

 be found not only the new species which 

 we collected, and the number of which, 

 after a long examination by one of the 

 first botanists of the age, Prof. Willdenow, 

 amounts to fourteen or fifteen hundred*, 

 but also the interesting observations made 



* A considerable part of these species is . already 

 inserted in the second division of the fourth part of 

 the Species Plantarum of Linnaeus, fourth edition. 

 Of the eringiums, which -we brought over from Ame- 

 rica, eleven new species have been engraved in the 



