MECHANICAL PARADOXES. 



not be possible, even if we had boomerangs, 

 to practise with them sufficiently to be able 

 to emulate the performances of the Australian 

 aborigines. In the open fields in the country 

 such practice is a very entertaining pastime, 

 and if its devotees were allowed to practise 

 at any motorist whom they might find filling 

 the country and smothering other travellers 

 with dust, the sport would be more exciting 

 as well as more useful than golf. As with the 



FlO. 17. HOME-MADE APPARATUS FOR TOY BOOMERANG. 



shooting of tigers in India or wolves in Russia, 

 the sportsman, in following his own amuse- 

 ment, would be promoting an object of public 

 utility. 



In default of such opportunities a good 

 deal can be done by cutting a boomerang out 

 of a visiting card, and flicking it off one 

 hand with the thumb and fingers of the 

 other. 



60 



