142 NATURE STUDY 



have learned and to draw the remaining pea, showing as 

 much as can be shown in one drawing. They might also 

 draw the half of the pea which shows the embryo. 



Still another method of introducing the subject of 

 germination is to fill the skull of any animal with dried 

 peas, closing the foramen with stout muslin, as indicated 

 in the bottle experiment. The skull should be placed in 

 a dish of water. In less than a day it will be beautifully 

 disarticulated. 



The teacher should grow, preferably in damp sawdust, 

 a number of the seeds, planting a fresh lot every week, 

 so that she may have on hand plenty of material for her 

 own and the children's study. 



Care must be taken that the seeds are not kept too wet. 



Under ordinary conditions it will not be necessary to 

 change the water, but if it does become cloudy, let the 

 children pour it out, rinse the tumbler and refill. This 

 can be easily done without disturbing the seeds. 



It will be about a Aveek before the seeds have made any 

 perceptible progress. From your own store of material, 

 select seeds which are in about the same stage of growth, 

 and give one to each child. 



What has happened ? How did it happen ? What 

 will this little root do ? Why ? 



Bring the seeds from the dark and from the cold — 

 the dry seeds. Which seeds have grown best ? Why ? 

 Which have grown least ? Why ? How many would like 

 to put their tumblers in the dark room ? Why ? 



Older Seeds: What has happened to the root of the 

 pea ? Why ? What difference is there between the 



