8 



AGRICULTURE ON THE PACIFIC SLOPE 



together to lift as much as a small handful of beans 

 has lifted. 



The principle of the lever, which we use in this experiment, 

 and in the ordinary steelyard scales, is a very important one 

 which it is worth while to study further 

 if you can. 



The teacher may find out how 

 much weight the seeds have raised by 

 measuring the distance from a to the 

 point on the bar from which the weight 

 hangs, dividing this by the distance 

 a6, and multiplying by the number 

 of pounds in the weight. Do this for 

 each weight separately, and add the 

 numbers together. This will give the 

 number of pounds raised by the seeds. 



Fill a bottle 

 full of dry 

 beans; then 

 pour in as 

 much water as 

 the bottle will 

 FIG. 5. -The swelling hold, and place 



force of seeds. The ft under Water 

 bottle was filled 



with seeds and in a pail and 



placed under water. ^ ^ ^^ 



next morning (figure 5). 



In most cases the seed germ 



t FIG. 6. A squash seed, 



comes out of the opening just showing the ''peg." 



