42 ARBOR DAY. 



growth, that now is the time to make it so not after two 

 or three fruitless attempts and failures. 5th, Remem- 

 ber that a tree will be sure to starve and die without plant 

 food and moisture, and that this cannot be found in or con- 

 tained by a hard, tough, clayey subsoil. 6th, Keep in 

 mind the fact that most trees do not require to be planted 

 on prairie soil deeper than three to four inches, but a 

 mound of good soil corresponding to the size of tree and 

 hole should be built up three or four inches higher than 

 the surrounding surface. 7th, Cultivate often with horse 

 power where it is possible, leaving the ground smooth and 

 even to assist in retaining moisture. After July 1st mulch 

 freely with green weeds or half rotten straw, or cover 

 with a flat rock, or any substance which will retain mois- 

 ture in a dry season. Water thoroughly once a week 

 through August, or until rain comes to your relief. You 

 will find in tree planting, as in nearly everything else, 

 that work thoroughly done is the most satisfactory and 

 profitable. Never use a spade to dig holes for planting 

 trees where a plow can be employed. 



TREE LISTS FOR ILLINOIS. 

 ILLINOIS STATE HOBTICULTUEAL SOCIETY. 

 The following lists of trees have been recommended by 

 the most intelligent and successful planters in the state, a& 



