II L Timber 



(continued from Part LI 1 1, p. 163). 



PAG E. 



Microscopic Structure 191 



Crystals (Calcium oxalate) . ... 195 



" Wastes not useless ' 196 



A warning note in regard to undue reliance 

 on the microscopic structure for diagnostic 



purposes 196 



Paper Pulp 197 



Heartwood and Sapwood 198 



Seasoning 199 



Specific Gravity 201 



Hardness 204 



Fissility and interlockedness 208 



Inflammability and fire-woods (including forest 



trees) 209 



Destructive distillation . 210 



Ash 212 



Calorific value of timbers 213 



Explanation of Plates (220-223) 216 



