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 like. 



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 exam-pies. 



The foregoing remarks will mean more if the reader is shown 

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



