44 



MANUAL OF GARDENING 



also contrast and compare carefully the kinds of any tree or 

 shrub of which there are two or three species in the neighbor- 

 hood, learning to dis- 

 tinguish them without 

 close examination; as 

 the sugar maple, red 

 maple, soft maple, and 

 Norway maple (if it is 

 planted); the white or 

 American elm, the cork 

 elm, the slippery elm, 

 the planted European 



35. Morello cherry. 



elms; the aspen, large-toothed ^ 

 poplar, Cottonwood, balm of gil- 

 ead, Carolina poplar, Lombardy 

 poplar; the main species of oaks; 

 the hickories; and the hke. 



It will not be long before the 

 observer learns that many of 

 the tree and shrub characters 

 are most marked in winter ; and 

 he will begin unconsciously to 

 add the winter to his year. 



36. May Duke cherry. 



Various specific examples. 



The foregoing remarks will mean more if the reader is shown 

 some concrete examples. I have chosen a few cases, not because 



