THE TREES OF AMERICA. 57 



PLATE X. 



BAlIi- 0K GILEAD. {PQPULm} CANDIGANS:) 



This is a very-hardy tree, and was chosen by Mr. Tudor for his experiments 

 for this reason as well as for its rapid.growth, which, with other qualities, ren- 

 der it peculiarly valuable as a " nurse -tree." Evelyn- c^lls the -peplars "hos- 

 pitable trees, for any thing, th^vesunder^, their shade." This fact is well shown 

 at Nahant by , the vegetation which; flourishes near them, and the itnprovement 

 of the soil in their neighborhood. The TYillow is also of this class.. Thei pop- 

 lars, says Emerson,' "grow- readily -ainid^^the dust and smoke- of close and 

 crowded towns," and they may, therefore, be considered. valuable for, planting in 

 these situations.,. ,The/ease with ;yvhich they may be. trangpia^^tedi together with 

 their rapid growth, stron^y recornmend them for ;tkis purpose. , As the bad 

 gases which poison the air in such crowded localities. cojiduq& to the growth of 

 vegetation, they^must be of much value to, this end. ,In this connection it may 

 be well to giveMr.-Tudor's metht»d of .transplanting, trees. His success has 

 been so marked, and is so well known in the country, that we do not think.we 

 can confer a greater favor upon our readers. We have' before noticed, to some 

 extent, the results of his experiments.-, ' - 



He says, in answer to our inquiries,."! have- tried vapous plans for trans- 

 planting air kinds of trees — large; and small„-forest'andsfrMt trees j at all sea- 

 sons — spring, summer, autumn, and winter.; I- give up i^ll ;Stakirigi or.. tying 

 of trees, at all seasons, and under all states of the soil, as being highly injurious. 

 I substitute for this, ballasting fwithr-stftne.-!— varying in quantity from; fiye or 

 six hundred pounds to three or /our tons.; -Thjs stone has a very favorable effect! 

 on the tree by condensing, the dews, preventing evaporation, and by keeping the I 



