174 FARM AND SCHOOL PROBLEMS. 



10. Compare direction of growth of different kinds of stems, by 

 use of samples. 



11. Make collections of apple twigs showing flowers in clusters, 

 young apples in clusters, and finally how one apple persisted and all 

 the others perished. 



12. Get samples of seeds showing nature's provisions for carrying 

 seeds by the wind. 



13. Make demonstrations showing the difference in swelling, 

 shrinking and warping of different kinds of wood. 



14. Get samples of the different kinds of roots mentioned in 

 chapter on plants. 



15. Make a collection of different kinds of bark, such as shag- 

 bark-hickory, sycamore, cottonwood, linden, elm and birch, etc. 



16. Classify woods as to durability when exposed to the weather. 



17. Classify woods as to weight. Classify trees of your vicinity 

 as to value. Secure samples of wood effected with rot from different 

 causes. 



Make drawings of trees before leaves appear in spring. 



"I see yonder leafless trees against the sky, 

 How they diffuse themselves into the air, 

 And, ever subdividing, separate, 

 Limbs into branches, branches into twigs, 

 As if they loved the element, and hasted 

 To dissipate their being into it." EMERSON. 



Study a tree and name different parts ; functions of parts ; 

 plant; foods ; sources of nourishment ; study relations of air and 

 leaves; roots and soils. Learn to recognize some of the com- 

 mon trees of the forest ; name the best kinds of firewood ; some 

 of the best commercial woods; study treatment for lengthening 

 the durability of buildings, post, ties, paving blocks, shingles. 



Field Work. 



1. Find the height of trees in the woods. 



2. Make a calculation of the number of feet of lumber in a tree. 



3. Find trees that probably came up from seeds dropped by birds. 



4. Study appearance of the landscape with reference to trees in 

 winter, spring, summer and autumn. 



5. Study nature's methods for distribution of seeds along fence 

 rows. 



6. Visit a forest if possible to study effects of tornadoes and 

 forest fires. 



7. Write on some subject relating to forestry. See following titles 

 of books and bulletins for topics. 



