A MANUAL OF BOTANY 



151 



reproduction ? (Look up aueiiioi)liilous.) Of what com- 

 mercial importance are pines? What are "naval stores"? 

 Make a table of the useful products directly or indirectly 

 depending on pines, thus : 



Name ok V 



WiiKKK Found 



Part I'sed 



»\V PkKI'AltKK 



Use 



Study of woods. Study the varieties of woods used for 

 cabinet and general building purposes, and observe the colory 

 grain, Juwdness, susceptibility to jjolish, iveight, odor, and other 

 features. ^lake a table embodying the results of your study, 

 usincr the followinsr lieadinij:s: 



Name ok 

 Wool) 



Where 

 Native 



Grain 



Pol IS 



Lumber. What are meant by " hard *' and " soft " pines ? 

 Why are such lumbers so much used by carpenters ? Why 

 are pine woods not durable when kept moist? What is 

 lumber? What is pine lumber worth per thousand feet? 

 Why is pine lumber so important ? What are timbers ? 

 Into what building forms are pine logs sawed? Where 

 does the pine lumber come from that is found in our 

 lumber yards? What is forestry? 



