122 Lessons in Nature Study. 



Now we will see what is left behind in the apple when 

 the gas is coming away. Let us take this little machine-oil 

 can and strain off some of the apple-juice into it. Then 

 fasten this rubber joint and glass tube on the can. Then 

 put the other end into a small glass bottle. We will put 

 a cold wet cloth on the bottle to keep it very cool. 



See me hold the can in the flame of this lamp. Pretty 

 soon we will see something in the bottle. I did not fill the 

 can. I put in only a little cider. " I see some steam on 

 the inside of the bottle." " There is a drop of water on 

 the end of the tube." " The water or cider is boiling in 

 the oil-can." 



By filling the can two or three times you can distil several 

 drops of alcohol. Do not let the can boil; keep it hot and 

 with patience you will get the alcohol. Now let us take off 

 this bottle and smell the liquid inside. " It smells strong." 

 44 It is not water." " Will water burn ? " " No, no." " We 

 put out fire with water." 



I will touch a match to this. What does it do? "It 

 burns." 4< It burns with a pale flame." 



This is alcohol. When the cider works, what poisonous 

 gas comes away ? " Carbonic acid." 



And what substance is left behind ? " Alcohol." 



Can you tell me anything about alcohol ? " It kills 

 folks." " It is in whiskey and beer." " It makes people 

 drunk." 



Yes, it is a dreadful poison, and to-morrow we will see 

 how it affects the people who drink it. 



IV. ALCOHOL. 



Children, here is an egg. Mary, can you tell me how to 

 know a good egg ? " Hold it to the eyes and see if it is 

 clear." " Hold it to the lips and see if one end is cold and 

 the other warm." 



When I break this egg, how can you tell if it be good ? 

 " If the white is clear and the yolk whole." 



This (breaking the egg) is a nice fresh egg. The other 



