ILLUSTRATIONS xi 



NO. TAGE 



7-. Convicts felling a Terminalia procera tree in the Andaman Islands 293 



73. Natives hand-sawing, Ceylon . . . . 296 



74. East Indian Walnut in fruit . . . 307 

 75- An exceptionally large and fine Yew burr from the Caucasus 315 



76. Hoop iron cleat, fresh nailed . . . 320 



77. Wooden cleat, fresh nailed ...... 320 



78. Hoop iron cleat, seasoned and sound .... 320 

 79- Hoop iron cleat, seasoned and split . 320 



80. Wooden cleat, seasoned and split . . . . .321 



81. Diagram of Smoke Kiln ... . 391 



82. Two-Decker Progressive Kiln . ... 392 



83. Progressive Kiln of A.B.C. Type ..... 393 



84. Compartment Kiln at Schneider's Works, France . . . 393 



85. Fan Kiln ..... . 395 



86. Andrews Kiln . , . 396 



87. Tieman Kiln ... . 396 



88. Diagram of Fan-operated Progressive Kiln .... 398 



89. Sturtevant Progressive Kiln .... 398 



90. Diagram of Thermal Circulation Progressive Kiln . . 399 



91. Erith Moist Air Progressive Kiln ..... 399 



92. Three Zone Kiln .... . . 400 



93. Sturtevant Triple Duct Dryer . . . 402 



94. Sturtevant Timber Dryer .... 402 



95. Sturtevant Multiple Heater Dryer ... . 403 



96. Fans, Heaters, and Air Ducts of Multiple Heater Dryers . 404 



97. Piling truck for timber .... . 404 



98. Diagram of Multiple Hea,ter Dryer .... 405 



99. Mercury Thermometer ...... 408 



100. Recording Hygrometer as placed in Erith Dryer . . 409 



loi. Recording Hygrometer in Sturtevant Dryer . . . 409 



102. Recording Hygrometer and Guide Chart for i inch Walnut boards . 410 



1 03. Thermometers reading equal . . . . 411 



1 04. Big difference between thermometers . . .411 



105. Timber piling : Ideal — good — bad ..... 414 



106. Truck loads dressing alternately to right and left . 415 



107. Floor piling . . . .416 



108. Truck piling in Compartment Dryer . 416 



1 09. Apparatus for determining moisture content in wood .418 



