508 On the Protection of the Blossoms of Wall Trees, 



perience has been confined to the use of the slender branches 

 of the Birch tree, but branches of other trees with small 

 leaves, such as the Hawthorn or Hornbeam, might, I believe, 

 be employed with success ; though I give a decisive pre- 

 ference to those of the Birch tree. 



