CONTENTS. 



Page 



Introduction 5 



The northern prairies 5 



Location and topography 5 



Soil 5 



Climate 6 



Early planting 7 



Does it pay to plant trees 8 



Planting for protection to farmsteads 9 



Planting for commercial purposes 9 



The market 9 



Cost of production 9 



The species planted 10 



Trees recommended 10 



Discussion of the species 11 



Broadleaf trees 11 



Cottonwood 12 



White willow 13 



White elm 1 14 



Green ash 14 



Boxelder 14 



Silver maple 15 



Hackberry 15 



Basswood 15 



Bur oak 16 



Catalpa 16 



Black walnut 16 



Other broadleaf trees 16 



Conifers 17 



Their commercial value . 17 



Their protective value 18 



Scotch pine 18 



European larch 20 



Western yellow pine . 20 



White spruce 21 



Austrian pine 21 



Other conifers 21 



Details of planting 22 



Planting material' 22 



Source of plants 23 



The necessary operations 23 



Preparation of the soil 23 



Mixing species 23 



Spacing 25 



[Cir. 145] 



(3) 



