SIMPLE TOYS. 



765 



turns around a pivot, and the tension of the spring keeps the machine in its 

 place. 



The swimming-fish (fig. 

 895) is moved by an india- 

 rubber spring, much as the draw- 

 ing-room kite is elevated in the 

 air. The spring of indiarubber 

 is twisted to make the fish swim, 

 and the caoutchouc is adapted 

 to a toothed wheel which has a 

 clock-work motion that gives 

 the tail a motion sideways and 

 round, acting like a propeller, 

 and thus the fish swims. 



It is perhaps as well to 

 say how these fish are managed, 

 because then children will not 

 break them, when they have 

 been purchased, to see what is 

 inside. Very young students 

 are very fond of analyses of Fig. 8 94 .-The bicycle toy. 



this nature, but synthesis, or putting together, is a far superior occupation 



/T 



Fig. 895. The fish. 



in these circumstances to analysis, and to put together more lawful than to 

 pull asunder. 



