xiv Introductory. Note. 



of the United States; for the scientific nomenclature, 

 Nath. L. Britton, E.M., Ph.D. 



I am greatly indebted to Professors Thomas C. Porter, 

 of Lafayette College, and N. L. Britton, of Columbia 

 College, for valuable aid and suggestions ; also to Rev. 

 S. W. Knipe, of Oceanic, N. J. 



INTRODUCTORY NOTE. 



COLUMBIA COLLEGE HERBARIUM, 

 NEW YORK, May 12, 1890. 



DEAR SIRS : I have been interested in glancing over 

 the manuscript of Mr. Newhall's book on our native 

 trees, and am much pleased to learn that it is to be 

 published. There is great need of such a popular work. 

 It will do much good in supplying information to our 

 people about some of the common things around them, 

 and this in an attractive manner. 



Yours very truly, 



N. L. BRITTON. 



