162 NATURE TEACHING. 



6. Notice at what distance from the foot of 

 a sand-box tree seeds may be found. Obtain, 

 if possible, an unopened, nearly ripe fruit and 

 place it in the sunshine. Measure, after the 

 explosion, the distance to which the seeds have 

 been thrown. Collect ripe fruiting spikes of 

 the castor-oil plant, place them upright in the 

 sun, and make similar observations. Similarly 

 examine the methods of seed dispersal in the 

 garden balsam, peas and beans. 



