3 



mospheric conditions, mainly the low temperature during the season 

 of growth, make the matter equally difficult. The figure (1), 

 dealing in detail with the northern districts of Finland around the 



forest-lines, shows the fo restless, mountainous areas in Far Lapland 

 to cover an area of about 2 million hectares, and all areas where the 

 pine cannot form consecutive forest, about 4 million hectares. All 

 the districts shaded by lines in the diagram are such where the birch 

 is the prevailing tree; coniferous trees are met with only in more 



