PREFACE TO THIRD EDITION 
xxv 
The first edition of “The Immigration Problem,” of 
which the second was a direct reprint, drew largely 
from the first printing in pamphlet form of the “Ab 
stract of the Report of the United States Immigration 
Commission.” When the Immigration Commission’s 
report was collected into volumes it was revised and 
numerous changes were made in many of the tables, 
altho none affected in any way the conclusions of the 
Commission. 
In this, the third edition of “The Immigration Prob 
lem,” every figure taken from the Immigration Com 
mission’s Report has been carefully compared with the 
final form of that Report. Efforts have also been made 
to bring the book up to date in all important particulars 
by using freely the results of the United States Census 
of 1910, which had not appeared at the time of the first 
edition, and also the latest Reports of the United States 
Bureau of Immigration and Naturalization. The late 
literature of private publishers on this subject has also 
been noted, so as to see where it was advisable to add 
new data or to complete arguments on any of the 
points considered. 
In making this revision, some of the chapters have 
been completely rearranged; others have been cut in 
some places; still others have been largely supple 
mented. To the appendices a number of new tables 
have been added, with the thought that the book should 
furnish enough material to become the standard com 
pact work of reference on this subject, which is sure 
to be of vital importance for years to come. Attention