one reason why tKe subject should be reserved for the winter 

 season. Two or three small branches will furnish enough 

 leaves of a given species to suffice for a whole class, and 

 wherever there are large bearing trees, with little trouble one 



VI 



can get the cones which are so necessary to an adequate study 

 of these trees. The cones of the white pine may generally be 

 found in abundance underneath the trees, while those of the 

 pitch pine, though generally less numerous on the ground, 

 are frequently within easy reach upon the lower branches. 

 By a little searching one may often find trees which have 



