582 



EVERYDAY SCIENCE 



belt-lacing, or of any pliable leather, about f inch wide, to the bow, 

 as shown in Figure 8. The thong should be just long enough so 



FIGURE 8 



that when it is given one turn around the drill it will be stretched 

 taut (Figure 9). 



Tinder. Any dry, finely divided material that readily bursts 

 into flame from a spark is called tinder. Shredded cedar bark, 



a wad of dry grass, 

 crumpled dry leaves, 

 willow catkins, scraped 

 cedar or spruce wood 

 will serve admirably. 

 Any observing person 

 will be able to find 

 plenty of good tinder 

 in a forest. 



In addition to this 

 tinder, which is used 

 to nurse the glowing 

 spark into flame, the 

 fire-maker should have 

 at hand a collection 

 of twigs, long-stemmed 

 dry grass, splinters, 

 slivers of dry bark, 

 etc., to be used as 

 kindling for the larger 

 fuel that is to follow. 

 To Make Fire. Set the fire-block on firm ground or on flat 

 rocks or on any foundation where the block cari be kept from slip- 

 ping or joggling. Slip a thin chip under the notch of the hearth. 



FIGURE 9. TOOLS IN POSITION TO MAKE FIRE. 



At A is shown a hole that has been bored in 

 producing fire. 



