6 



ArvTICULATA.— P. 57. 



"What are the cliavaotciistics of this division as distinguished 

 from the preceding ? Into how many classes are the articulated 

 animals divided? State the name of each class, and give 

 examples of the animals comprised in it. 



Class I. Ankellata. — P. 59. 



What is the meaning of the term ? By what peculiarity of 

 structm-e are leeches distinguished ? How do they move ? How 

 do they breathe ? Is the medicinal leech a native of Ireland ? Is 

 it of England ? From what countries is the supply derived ? Ho\v 

 can the leech draw blood ? How is it stored up ? In what sense 

 was the word "leech" formerly used? How is the winter passed 

 by the horse-leech ? Give an instance of this. In what respects 

 does the body of the earth-worm differ from that of the leech ? 

 How does the earth-worm move? When do they go abroad? 

 How are they produced ? What is the colour of their blood ? On 

 what do they feed ? What are their uses ? What is stated by 

 Mr. Darwin ? What is said by Dr. Carpenter as to the body being 

 cut in two ? What experiments were made by a French natu- 

 ralist ? What peculiarity of reproduction is observed in the J\'ais? 

 How is respiration carried on in the "lob-worm?" How in the 

 Terehella? Hovf in the Serpula? What are the -C/Taw^es .? What 

 are their dimensions ? What is the covering of the "sea-mouse ?" 

 What are its colours ? Name the four tribes of AnneUds now 

 enumerated. Where is the hair-worm found ? What is its length ? 

 What error respecting it is stiU current ? Give examples of the 

 different meanings in which the word "worm" has been used. 

 Are any of these animals luminous? Where have they been 

 observed? Does any species inhabit rock-pools? How is its 

 presence manifested ? 



Class II. Cxrripeda, — P. 68. 



What tradition is told of the Barnacles ? What scientific name 

 commemorates the error ? What are the metamorphoses of the 

 Lepas? What of the Balanus? How were the shells of the.se 

 animals formerly classed ? What simple experiment is mentioned ? 



Class III. Crustacea. — P. 72. 



W hat is the meaning of the term ? What are the uses of a hard 

 covering to animals of this class? Of what material is it com- 

 posed ? Where do the Crustacea live ? What is said of their 

 form ? What are the characteristics of the class ? How is the 

 size of integuments made to keep pace with the growth of the 

 animal ? What is said of their power of reproducing an injured 

 limb ? How is respiration carried on in the common crab ? How 

 in the Fhyllopoda, or "gill-footed?" How in the Oniscus? How 

 in the lan'd-crabs ? Why are land-crabs drowned by long immer- 

 sion in water? What is meant by "pedunculated" eyes? What 

 by "sessile?" What is the structure of the eye in Daphnia? 

 What is it as shown in a fossil species (Asaphus?) What are 



