100 CLASS-BOOK OF ZOOLOGY. 



QUESTIONS ON SECT. XXII. 



§ 406. What are Lizards? 



§ 407. Describe the Crocodiles of Africa, America, and Asia. 



§ 408. Describe the Crocodile of the Nile. 



§ 409. By whom and for what purpose was it brought to Rome ? 



§ 410. What idea had the ancient Egyptians of it?" 



§ 411. On what does it feed, and in what manner is it caught? 



§ 412. What is meant by "Crocodile tears?" 



§ 413. What are Alligators, Caymans, and Gavials? 



§ 414. Describe the Guana. 



§ 415. What is its disposition and use? 



§ 416. Describe the Chameleon. 



§ 417. How is the change of its color effected? 



§ 418. What person may be called a Chameleon? 



§ 419. Describe the Brown Swift? 



SECTION XXIII. 



3d Order — Tortoises: (Chehnia.) 



§ 420. Tortoises (Chelonia) are those Reptiles which 

 have a covering, consisting of a shell, on the back, as 

 well as on the breast. They walk on four legs, or swim 

 with the aid of four fins. They have no teeth, but very 

 strong horny jaws, and swallow their food without masti- 

 cating it. Though some are herbivorous, they are mostly 

 carnivorous, and can live without food a very long time. 



§ 421 . Tortoises live to a great, age ; one for instance lived 

 in the Archiepiscopal garden at Lambeth, in England, from 

 1633 to 1753, or one hundred and twenty years. 



§422. The astonishing tenacity of the life of Turtles 

 was proved, by making a large opening in the scull of 

 one, drawing out all the brain, and washing the cavity, so 

 as to leave not the smallest part remaining. The turtle, 

 after having been thus injured, walked away, closed its 

 eyes, which so remained, and continued to live without a 

 brain for six months. 



§ 423. The head of another being cut off, it lived for 



