Trilobitcs? What inferences have been deduced from the 

 structure of their eyes? Are Crustacea born alive or produced 

 from ova? Do tliey undergo any mctauiori)hoscs ? What was 

 the former opinion on this point? 13y wlioni was tlie true state- 

 ment first brought forward ? What were his observations? 'lo 

 what animal had tlie term Zoea been ap{)licd i Are any land- 

 crabs found in Europe ? What does Col. Sykcs say of some Indian 

 species ? What is said by Bisliop Heber ? Wi)at line of march is 

 pursued by those of the Antilles? For what i)urpose is this un- 

 dertaken ? How are Crustacea classified ? Wliy are "spider-crabs" 

 so called? What observation was made on one of them by Mr. 

 Thompson ? How is the large edible crab captured ? What weight 

 does it attain ? Is the smaller species used as food ? To wliat 

 use are they applied by fishei-men ? What arc pea-crabs ? Where 

 found ? In what numbers ? AVhy are hermit-crabs so called .' 

 For what purpose is a shell necessary ? How is it selected ? What 

 is the structure of the tail of the lobster? How are lobsters 

 captured? What dimensions are attained by the spiny lobster? 

 What is said to be the longevity of the cray-iish? How are the 

 young supplied with food ? In the event of capture, how do the 

 parents act ? What appearance is presented by the cast-off sliell ? 

 What is said by Mr. Ball on this subject ? Is the shrimp common 

 on all parts of the coast ? Is the prawn ? In what situations arc 

 ihe smaller Crastacea found? Why is the C'liclops so called? 

 What does Jurine say of its fecundity ? What of its cannibal isnr ? 

 What is the appearance of the JJaphne? How are its ova imi- 

 tected during winter ? What are the habits of the Livmoria? l)f» 

 any of these animals possess luminous powers? Vv'hat are the 

 Epizoa ? What is said of their numbers ? State the remarks of 

 Mr. J. V. Thompson. 



Class IV. Ixsecta.— P. 92. 



What is the origin of the term ? Into how many parts is tlie 

 body divided ? What is the structure of the heart ? Wliat is 

 said of its prdsations, and of the circulating fluid ? How is respi- 

 ration eifected ? What is the stmcture of the trachea:? What 

 are the antennce? Wliat are their supposed functions? Have 

 insects the sense of smell ? What instance is given by ^Ir. Knapp ? 

 Have they that of hearing? Give an example. Are the eyes 

 sessile or otherwise? What is the most usual number? How 

 many eyes has the whirl-gig? What is the most common kind 

 of eyes? How many lenses have been computed in the eye of a 

 dragon-fly ? Of a gad-fly ? An ant ? A house-fly ? A butter 

 fly? and in that of a species of beetle? For wliat apparent 

 object are they bestowed in such abundance ? What is meant by 

 the "metamoi-phoses" of insects? Mention their diflfcrcnt states, 

 and the terms used to denote them. What is the nature of the 

 food of insects? Name the several parts of the moutli. Are 

 these parts invariably present? What is the number of the 

 wines? What are the elytra? What does Piofes.^or Owen say of 

 the%vings? On what is the classification of insects founded' 

 Give the note cn-.imerating the several ordei-s, and examples vf 

 them. 



