736 



THE TROPICAL WORLD. 



resemble horns. *' This extraordinary animal," says Wallace, " resembles a pig in its 

 general appearance ; but it does not dig with its snout, as it feeds on fallen fruits. 

 The tusks of the lower jaw are very long and sharp ; but the upper ones, instead of 

 growing downward in the usual way, are completely reversed, growing upward out oi 

 bony sockets, through the skin on each side of the snout, curving backward to near 

 the eyes, and in old animals often reaching eight or ten inches in length." As far as 

 we know, no living specimen of this extraordinary creature has ever reached Europe 

 or America ; but its skulls, and drawings therefrom, are found in our museums. The 

 uses of its curious tusks, like those of the elephant, are a problem which naturalists 

 have yet to solve. 



Here we bring to a close the results of our researches into some of the character- 

 istic forms of Animal and Vegetable Life, as manifested in the Polar and Tropical 

 Worlds. 



