xxiii 



and on the banks of the Rio Negro, the 

 Oroonoko, and the river of Amazons % 

 Mr. Bonpland has given the figures of more 

 than forty new genera -j~ of plants of the 

 torrid zone, classed according to their na- 

 tural families. The methodical descriptions 

 of the species are both in French and in 

 Latin, and accompanied by observations 

 on the medicinal properties of the plants, 

 on their use in the arts, and on the climate 

 of the countries where they are found. 



III. Monography of the Melastomas, rhtx- 

 ia, and o ther genera of this order of plants J. 

 This work will comprise upwards of a 



# Equinoctial plants, 2 vols, folio, with more than 

 1^0 plates. This number of plates has been greatly 

 augmented since M. de Humboldt wrote this intro- 

 duction. The number contained in the two volumes 

 will exceed 150. See the prospectus of M . de Hum- 

 boldt's works, at the end of the volume. 



f We shatl cite here only the genera, ceroxylon, 

 marathrum, cassupa, saccellium, cheirostemon, rhe- 

 tiniphyllum, machaonia, limnocharis, bertholetia, ex- 

 ostema, vauquelinia, guardiola, turpinia, sal pian thus, 

 hermesia, cladostyles, lilaea, culcitium, espeletia, 

 bonplandia, platycarpum, andromachia, menodora, 

 gaylussaica, podopterus, leucophyllum, angelonia. 



J Melastomas, 2 vols, folio, with colored plates. 



