ARNOLD ARBORETUM, HARVARD UNIVERSITY, 



DIRECTOR'S OFFICE, 



/Jjfc. I 88/ 



^^yt^^f^ y^ ^^^^^^^^^^^^ *^£*y€Z^y£ ^^^^^C^ 



/^^^^^ ^zZ^A^ /^^^^^ ^^^^^^^^^^ 



x^^^^^^^^^>^^^ ^tT^z^ s^z^ ^^^t>^~ ^z!L^ ^^S^^ ^^^^^^^^ ^ 



( ^ ^^^^^^^^ 



