Appendix 
making acquaintance with our trees may be 
found in George B. Emerson’s “ Trees and 
Shrubs of Massachusetts/’ Apgar’s “ Trees 
of the Northern United States/’ and Charles 
S. Newhall’s “ Trees of Northeastern 
America/’ as well as in Professor Charles 
Sprague Sargent’s monumental “ Silva of 
North America/’ four of the twelve volumes 
of which have now been published. 
1625. Francis Bacon : “ Of Gardens.” 
(Essays.) 
1689. Sir William Temple : “ On the 
Gardens of Epicurus ; or ? of Gardening in 
the year 1685.” 
1713. Alexander Pope: “ An Essay 
on Verdant Sculpture.” ( The Guardian , 
No. 173.) Etc. 
1714. Joseph Addison: “Description 
of a Garden in the Natural Style.” (. The 
Spectator , No. 477.) Etc. 
1728. Batty Langley : “New Princi- 
ples of Gardening.” 
391 
