CONTENTS. 

 CHAPTER VIII. 



FOREST PROTECTION. 



Injuries to trees by insects, 133; by mice, birds, and other animals, 

 136-138; by severe winters, 139; frost, tender and frost-hardy trees, 

 140, Sleet storms, 141. Frost cracks, 142; by wind, 143, by sun 

 scald, 145. Fungus diseases, 146, by forest fires, 146-155. Some 

 notable forest fires, 155, 156. Sand dunes, 156-159. 



CHAPTER IX. 



RATE OF INCREASE IN TIMBER TREES. 



Life history of a mature tree, 162. The profit from an invest- 

 ment in forest land, 164. Willow for fuel, 165. 



CHAPTER X. 



FOREST MENSURATION. 



Methods of measuring single trees, 167-176. Table of areas of 

 circles 171. Compound interest table, 172, Methods of measuring 

 growing stock, 173. Rate of growth in trees, 175. Pressler's table, 

 178. The accretion of a felled tree, 178. The accretion of a forest, 

 180. The working plan, 180. Estimation of standing timber, 181. 

 Practical measurement of logs and lumber, 181. Scribner's rule, 

 183. Table. Doyle's rule, 185. New Hampshire rule, 186. In- 

 struments used in forest mensuration, 187. 



CHAPTER XI. 



FOREST PROBLEMS. 



Twenty-five forest problems stated and answers given to each one. 

 Designed to be suggestive of the different phases of forest regener- 

 ation and management, 195-216. 



CHAPTER XII. 



THE USES OF WOOD. 



Quarter-sawing of wood, 223. Fuel value of woods, 227-229. 



