ILLUSTRATIONS 



VIRGIN FOREST OF BALD CYPRESS GROWING IN SWAMP Frontispiece 

 DESTRUCTIVE LUMBERING, ELK COUNTY, PENNSYLVANIA . . 6 



RED PINE, FOREST-GROWN, STANDING ON NORMAL SCHOOL 

 GROUNDS, MARQUETTE, MICHIGAN 6 



VIRGIN FOREST OF WHITE PINE, CLEARFIELD COUNTY, PENN- 

 SYLVANIA 14 



CHARACTERISTIC VIEW IN THE WIENER- WALD, AUSTRIA . . 24 



VIEW IN THE FOREST OF PRINCE BISMARCK, FRIEDRICHSRUHE, 

 GERMANY, SHOWING COMPARTMENT LINE, WHICH SKRVES 

 AS FIRE LINE AND ROAD 40 



AN OLD PLANTATION OF SPRUCE NEAR EISENACH, GERMANY 40 



SECOND-GROWTH WHITE PINE, ABOUT THIRTY YEARS OLD, 

 JEFFERSON COUNTY, PENNSYLVANIA 64 



SEEDLING WHITE ASH, ONE YEAR OLD, SHOWING DEVELOP- 

 MENT OF TAP-ROOT 64 



SPRAY AND STAMINATE BLOSSOMS OF WHITE PINE ... 64 



DEVELOPMENT OF WHITE PINE SEEDS 64 



SECTION OF A WHITE PINE BOARD, SHOWING ANNUAL RINGS 72 



SECTION OF A JOIST CUT FROM OLD-FIELD PINE, SHOWING 

 MARKED DIFFERENCE BETWEEN SPRING AND SUMMER 

 WOOD 72 



SECTION OF RED OAK, SHOWING MEDULLARY RAYS AND AN- 

 NUAL RINGS 72 



SECTION OF CAROLINA POPLAR, SHOWING ANNUAL RINGS, IN- 

 TERMEDIATE RINGS CAUSED BY ALTERNATE WET AND DRY 

 WEATHER, AND IRREGULARLY SHAPED HEARTWOOD . . 72 



