THE LIZARD. 



59 



GALAPAGOS ISLANDS. 



tails, and, raising themselves on their front legs, nod their 

 heads up and down, and try to look very fierce; but in real- 

 ity they are not at all so; if one just stamps on the ground, 

 down go their tails, and off they shuffle as quickly as they 



CACTUS GROWTH IN THE DESERTS OF UTAH. 



can. I have often seen small fly-eating lizards, when watch- 

 ing anything, nod their heads in precisely the same manner, 

 but I do not at all know for what purpose. If this Amlly- 

 rJiyncus is held and plagued with a stick, it will bite it very 



