METCALF: WHITE PINE BLISTER RUST 333 



on account of the great number of species represented, and the widely- 

 various parts of the earth from which such stock comes. No section 

 of the country is Hkely to suffer more from this source than Long 

 Island and the general vicinity of New York City. May I express 

 the hope that this Botanic Garden, already a leader in local and 

 national sentiment in horticultural and botanical affairs, will take a 

 position in this matter which will help to bring about the suppression 

 of this very dangerous traffic? 



EXPLANATION OF PLATES VI AND VII 



Plate VI. A native white pine {Pinus strobus) in thick stand, completely girdled 

 by a blister rust canker. Kittery Point, Me. (Photograph by Mr. W. S. Carpenter, 

 of the New York State Conservation Commission.) 



Plate VII. A young native white pine {Pinus strobus), completely girdled and 

 showing several infections of blister rust on trunk and branches. Kittery Point, Me. 

 (Photograph by Mr. W. S. Carpenter, of the New York State Conservation Com- 

 mission.) 



