XIL] 



NATURAL HISTORY. 



55 



T. How many orders are there in 

 the first division ? 



p._Five. The first is called Decapoda 

 or ten-footed, all of which have ten feet, 

 furnished with nippers; and the common 

 lobster, which is included in the second 

 family, is an excellent example of the order. 



153. T. What is the name of the 

 second order? 



P. There is very little of interest in the 

 second, third, fourth, or fifth orders, which 

 are called Stomopoda, Amphipoda, Lcemo- 

 dipoda, and Itopoda. 



T. How is the second division of 

 a divided ? 



P. Into the Branchiopoda and Pcecilo- 

 poda, which have each certain peculiarities. 



T. What is the third class of 

 lataf 

 P. The Arachnida, or spiders. 



ite the peculiarities and rea- 

 sons why they have been classified by 

 themselves. 



P. They are destitute of wings, do not 

 undergo any changes of form like insects, 

 and differ in their nervous system. 



157. r. How 

 are they divided ? 

 P. Into two 

 .orders. 1. T'.ie 

 true spiders and 

 scorpions, and 2, 

 The Miiall animals 

 known as 



scorpions, such as the book-scorpion, and 



the mites. 



GENERAL QUESTIONS ON LESSON XI. 



1. How are the Crustacea divided? 



2. Describe the peculiarities of each 

 division, and give examples from them? 



3. Name the various orders of each 

 division, and the reason they are divided 

 from the others ? 



4. How is the Arachnida, or third class, 

 divided ? 



5. Give examples from each order? 



LESSON XII. 



Tiir. fourth class comprises those creatures called Insects whose peculiar and beautiful 

 form, colour, and instincts, have captivated all enthusiastic naturalists. In a treatise 

 like this, we can only take a glance at them a mere transient glance. They undergo 

 various changes during their brief existence, wonderful to behold, and yet \\ 

 man's existence and future state. They are divided into twelve orders, each charac- 

 terised by C- .. here, but will be particularised in 

 the Zoological Catechism. 



QUESTIONS. 



r. What iniects are found in the 

 first * 'la? 



which ar<- 



159. is there peculiar to the 



;*, do not change 



md have peculiar organs of 



locomotion at the side* or end of the body. 



A What is the third order called? 

 /' /' r parasites, such aa ticks, 



&c. 



r. What kind of insect do we find 



in the fourth on: 



P. The common flea (Pulfx irritant) 

 which every one of us is, no doubt, well 



.:ited with. 



/'. NVli.it are the names of the 

 (if li. sixth, and M rs T 



/' 1 tilth is call. 



sixth, Orthoplera; and the seventh, Himi- 

 ptrra. 



/ "hat animals do we find in the 



lini. on 



/'. (inn rally beetle*. 



fig. 20.- Jrirui 4omttHt*4. or ehM mtt*, 

 (liijhij mmguiflMl) atucJuag a ptoo* of < ' 



