EXPLANATORY INDEX. 435 



so intensely modified as in the male ; while the male of the 

 common kind has only two of those feathers in each wing, 

 which are modified in a less degree than those in the females 

 of the white-headed species." 



WHITE-HEADED MAROUDI. 



If the reader will refer to the note on Pee-ay-man, he will see 

 that the Maroudi is thought to be a bird of good spiritual 

 influence. This is the Jacatinga of Spix. 



MOCO-MOCO TREE (Calladium arborescens). 



MONKEY, Brown (Cebus Apella). This monkey is well 

 known in England, and is very intelligent. Some years ago 

 there was one in the Zoological Gardens who had been taught 

 to crack nuts with a stone, if he found them too hard for his 

 teeth. He taught a companion the same art, and it was most 

 absurd to see the two sitting side by side, and cracking nuts 

 alternately. They never seemed to quarrel about the pos- 

 session of the stone, but as soon as one had cracked a nut, he 

 put down the stone and the other took it up. They had worn 

 the stone (juite smooth by continual use. 



F F 2 



