540 AMPHIBIA. 



necticut; and in the coal measures of Westmoreland county, 

 Pennsylvania, are found foot-prints which are regarded as those 

 of airbreathing vertebrates. 



What is the 4th Order of Reptiles? Describe their skin. How is it ex- 

 uviated? With what furnished? What kind of changes do the vessels of 

 the skin undergo? What is necessary in order to their action? How is 

 the skin moistened ? What is said of its healthy action ? What is the re- 

 mark of Dr. Townson ? What is said of the form of the Amphibians ? 

 What other characteristics are mentioned besides their naked skin ? What 

 changes of form and habit do they undergo ? How do some naturalists 

 regard them? Into how many orders are they divided? What is the 1st ? 

 Name its distinguishing characteristics. How many families does it include ? 

 What is the 1st Family? Where did Cuv. place it? What has been proved 

 byMuller? Why was the name Caecilia given to these reptiles? How 

 are they characterized ? What is said of their habits ? What sp. is men- 

 tioned ? What is said of it ? 



What do the TAILLESS AMPHIBIANS include ? What characters of this 

 group are given ? Name the 2nd Family. Give its characters. In what 

 condition do they spend the colder months ? Upon what do they feed ? 

 How do they secure their food ? What is said of their eggs ? What changes 

 do these animals undergo * Can they be tamed ? How long do they prob- 

 ably live without air or food? At what time were they introduced into 

 Ireland ? What Frog peculiar to N. A. is mentioned ? What is said of 

 it? What other sp. are named? Give some account of them. Describe 

 the Tree Frogs. In what respects do they differ from common frogs? Do 

 they never leave the trees? What is said of their young, &c. ? What 

 sp. are mentioned ? What is the next Family ? How does Cuv. distinguish 

 them? Is their saliva poisonous? What is said of their skin? Of their 

 habits ? How many sp. of them ? Which are named ? State what is said 

 of them? How are the TAILED AMPHIBIA characterized? What is the 

 4th Family of Amphibians? What division is made of the Newts? Des- 

 cribe the'Land Newts? What places do they frequent? What is said of 

 their size and color ? Of the number of species ? What else is said of 

 them ? How are the Tritons distinguished ? In what places are the sp. 

 found ? What is said of their size ? Describe the Tiger Triton ? Which 

 is the largest Water Newt of England ? In what manner does the female 

 deposit her eggs ? What are the characteristics and habits of the AQUATIC 

 NEWTS? What is the 5th Family? Where are they nearly all found? 

 Do they undergo any transformation ? How is the gen. Menopoma char- 

 acterized? What further is said of these animals? What sp. is referred 

 to? Describe the Amphiuma? What sp. are mentioned and what is said 

 of them? What is the 2nd Sub-order? Repeat what is said of it. In 

 what family does the Chart include these -Amphibians ? Has it received 

 any other name? What genus is first noticed? Can you give its char- 

 acter ? What is said of its places of abode ? What does Sir Humphrey 

 Davy remark respecting it ? What is its size, &c. ? Give the characters 

 of the genus Menobranchus ? What is said of the Banded Proteus? 

 What other sp. are mentioned? Describe the animals included in the gen- 

 eric term Siren. Which is the largest sp. ? What is said of the Axolotl? 

 What of Fossil Amphibians ? 



Name and trace the Amphibians figured on the Chart. 



