EXERCISE 8 (Continued) 



third with a brown stain, following manufacturers' directions in 

 each case. After they have dried, study the boards to determine 

 how the summer wood, spring wood, sapwood, and medullary 

 rays react to the finishes. Does sapwood or heartwood finish 

 better? To which of the structural elements of the wood is 

 the " figure " of the wood principally due ? 



Repeat the above with the quartered surfaces and determine 

 the same facts. 



Compare with oak furniture, floors, doors, etc. and classify 

 these as to excellence of materials and finish. 



References 



BERGEN and CALDWELL. Practical Botany, pp. 44-52, 391-393. 

 BERGEN and CALDWELL. Introduction to Botany, pp. 109, 110. 



