112 



Lessons in Nature Study. 



2. Remove the second circle of petals. Are these like 

 the petals of the first circle ? How do they differ ? Draw 

 a petal of the second circle if these petals show a tendency 

 to become narrower. 



3. Thus, slowly remove one circle at a time, comparing 

 the petals with those of the rows already removed. It is 

 not necessary to draw every one, but only the petals of 



FIG. 3o. EVOLUTION OF THE GARDEN ROSE. 



those circles which show a difference. The interest will at 

 once be aroused, because, as they approach the centre of 

 the flower, the petals take on various curious and often 

 fantastic forms, until they partake of the nature of both 

 petals and stamens. At last the petal-forms disappear and 

 normal stamens are found. The drawings will show every 

 stage of development from stamen to petal, and each child 



