90 



ELEMENTARY FORESTRY'. 



weeds to start, while otherwise the weeds are soon ahead of 

 the seedlings. 



It is important to keep the soil loose and mellow between 

 the seedlings, and to keep the weeds very carefully removed 

 until at least the middle of July, after which they may some- 

 times be left to advantage to afford winter protection, but in 

 the case of very small seedlings this protection is best given 

 by a light mulch put on in autumn and taken off in spring 

 and the weeds should be kept out. 



If the seeds of Red Cedar, the Thorn, Mountain Ash and 

 other seeds that require a long time to start are sown in the 

 spring and do not germinate, it is a good plan to cover the 

 bed with about an inch or two of hay or leaves; keep out 

 weeds and let this mulch remain until the following spring, 

 when the seeds will probably be in condition to grow and the 

 mulch should then be removed. 



TABLE SHOWING THE APPROXIMATE HEIGHTS OF ONE-YEAR 



OLD SEEDLINGS GROWN ON GOOD AVERAGE SOIL 



IN MINNESOTA. 



