86 Fievcli Kailoi^al Instliute, 



to regret that, from the state of his health, the author is 

 tuidc; the necessity of suspending his labours. 



M. de 1,1 Bilbrdiere Las arrived at the t?3d number of his 

 Flora (if' Nc IV Holland. Five new e^nera are iliere described, 

 one of which, in parlicuiar^ wliir h M. de la Billardiere calls 

 aiherosperma, and which seemed to him to belong to the 

 family of the rnmincuU, is a tree which is likely to become 

 useful to France, because its almonds have the taste and fla- 

 vour of nr.fmeg', and it is likely to be capable of supporting 

 the temperature of our climate. 



One .')f our most celebrated correspondents, M. de Hum- 

 boldt, con;mu;s to publish, along with his fellow-traveller 

 M. Bonpland, the plants they have discovered in Equinoxial 

 America. Two numbers of this have been already published. 

 The family of the melasionui alone will be indebted to these 

 learned travellers for so great a number of new species, that 

 tliey might form a volume by themselves. 



Messrs. Humboldt and Bonpland have riot been less in- 

 dustrious in the natural history of animals. 



The condor, the bird so famous in the Cordilleras, has 

 never been described before their time in an uniform man- 

 ner, and the size of it has been much exaggerated. 



It is scarcely above one metre in height, nor more 

 than three or four metres in thickness. Its colour is gene- 

 rally of a blackish brown : the lower part of the neck is fur- 

 nished with a kind of collar of white feathers. The male is 

 distinguished by a fleshy crest upon the crown of the head, 

 and by a white spot upon the wing; distinctions which the 

 females have not. 



The observations of these two travellers upon the elec- 

 trical eel of Surinam {Gymnvtus electricus) are very cu- 

 rious. {Vide Phil. Mag. vol. xxiii. p. 356.) 



M. Tenon has given an irnportant continuation of his 

 Memoirs upon the Dentition of the Horse. 



After briefly recapitulating the results he had presented 

 in former years, he dwells at considerable length upon the 

 back teeth, or the three teeth of each jaw. 



The lower teeth have two roots; those above have three. 



The 



