FRUITS. 91 



CLASSIFICATION OF FRUITS. 



After a thorough study of a few such fruits as the fore- 

 going, examine and classify a large number of easily pro- 

 curable sorts, selected so as to secure as great a variety as 

 possible. See list given above. Careful attention should 

 be given at the same time to their morphology. Endeavor 

 to ascertain in each case how many carpels there are, and 

 what modifications the parts forming the fruit have under- 

 gone. It is desirable to adopt some one classification and 

 adhere to it. That of Gray is, on the whole, the most 

 satisfactory. 



SPECIAL STUDIES. 1 



I. Projection of seeds. 



II. Arrangements for burying seeds. 



III. Colors of fruits. 



IV. Relationships indicated by fruits. 



V. Variation as seen in cultivated fruits. 

 VI. Minute anatomy of the cherry. 

 VII. Development of the apple or some other common 

 fruit. 



This last may be made an extremely interesting and 

 profitable study. Beginning with the flower of the apple, 

 cherry, or any of the common fruits, watch day by day the 

 changes that take place, keeping a full record of them 

 until the fruit is formed. 



1 Botanical Gazette, Vol. VII (1882), pp. 125, 137 ; Vol. XII (1887), 

 p. 225 ; Lubbock, Flowers, Fruits, and Leaves, Chap. Ill ; Wallace, Dar- 

 winism, pp. 305-308 ; Darwin, Animals and Plants under Domestication, 

 Vol. I, Chap. XI ; Strasburger, Practical Botany, p. 347 et seq. 



