132 NATURE-STUDY LESSONS. 



3. (a) Examine roots of different kinds of grass to 



discover some like the foxtail that cannot 

 " creep." 

 (3) In the cleared pieces of ground referred to in 

 No. 2 (a) which kinds of grass usually appear 

 first — the creeping or the non-creeping ones ? 



4. Try to discover the reasons why foxtails, chesses 

 and annual panic grasses precede the creeping kinds in 

 the occupation of a neglected garden. 



5. Dig up carefully, wash clean, dry and preserve two 

 or more grass plants to show clearly the difference in the 

 roots between the annual and the perennial grasses. 



6. (a) Which class — annual or perennial — has generally 



larger seeds ? 

 ((5) More numerous seeds ? 



7. Examine grasses to find any that store nourishment 

 for another season in their roots. 



8. (a) In what ways are the perennial grasses most 



useful to man ? 

 (i5) How do the annual grasses best serve him? 

 (See the note at the head of this lesson.) 



9. Defend or refute the statement that the grass family 

 is the most useful family of plants in the world. 



Oats. 



10. («) Plant some oats and beans in the manner sug- 



gested on page 1 29 to watch their germina- 

 tion and early development. 

 (^) Note the differences in the young plants. 



11. (a) Examine plants of oats when the flowers or 



fruit have developed. 

 (^) Is the stem hollow or solid ? 



