46 NATURE STUDY AND AGRICULTURE 
own and care for them till they come into bearing. You will find it 
interesting and instructive, and it should also prove profitable. 
8. Value of fruit crop. — (a) If a dozen young trees yield an average 
of two bushels of apples each, what is the value of the crop at last 
season’s price in your market? (5b) What is the value of the fruit from 
a dozen compass cherry trees, averaging ten quarts per tree? (Allow 
the same price that was paid for plums in your market last season.) 
9. Grafting. — Grafting and budding are very interesting operations 
and require a high degree 
of skill. If you can find 
any one in your neighbor- 
hood who understands 
them, get him to show you 
exactly how each is per- 
formed. 
to. Insects and dis- 
eases. — Are fruit growers 
in your vicinity troubled 
with any insect pests or 
plant diseases? If so, 
learn all you can about 
the nature of the trouble 
and the treatment for it. 
11. From flower to 
fruit. — Study the struc- 
ture of an apple blossom. 
and the development of 
the fruit as suggested in 
connection with the rose 
family on page 78. 
12. Fruits compared. — Compare various fruits and observe the 
different ways in which they are developed from the pistil. (a) The 
apple is developed from the ‘‘cup” of the flower; the pistil is the core. 
(6) The currant and gooseberry are simply the pistil containing several 
seeds. (c) Plums and other stone fruits are pistils with a single seed. 
(d) The raspberry is a cluster of tiny stone fruits, each of the grains 
that make up the berry being a pistil and containing a seed. (e) In 
the strawberry we eat the receptacle or end of the flower stalk, the 
Cras APPLE TREE IN BLoom 
Grand Forks, N. D. 
