CONTENTS 



Page. 



Introduction 5 



The region 5 



Early planting 6 



Forest plantations examined 6 



Number and area 6 



Methods of study 6 



Determining the value 7 



Species studied 8 



Hardy catalpa 8 



Catalpa sprouts 11 



European larch 11 



Black walnut 13 



Silver maple 15 



Ash 15 



Osage orange 17 



Bur oak 18 



Russian mulberry 18 



Black locust 18 



Cottonwood 19 



Honey locust 19 



Sugar maple . 19 



Boxelder 21 



Chestnut 21 



Butternut. 21 



White elm ! 21 



White pine 21 



Scotch pine 21 



Austrian pine 22 



Norway spruce 22 



Tamarack 22 



Other species 23 



Commercial returns 23 



The market for forest products 24 



The Urbana plantation 25 



Thinning a forest plantation 26 



Planting plan 30 



Shelter belts 30 



Suggestions for planting 32 



[Cir. 81] 



(3) 



