88 THE SHADOW OF THE WORLD’S FUTURE 
absorb the derelict elements of other countries’ peoples, 
if their own progress is to be the criterion of success in 
the problem of peopling the earth. 
There is yet another hindrance to migration, 
to which attention must perforce be given in the 
Future. Immigrants may be divided into two classes, 
viz.: (a) those who really combine with the people 
who receive them, and (5) those who endeavour to 
maintain a quasi-separate social and political existence. 
With the former, the only questions for consideration 
are those relating to what may be called personal 
qualities. With the latter, the possession of those 
personal elements may have to be regarded as quite 
subordinate to others. For example, certain classes of 
immigrants have shown a tendency to segregate 
themselves, and to maintain their own native tongue 
in order to ensure a differentiation from the people of 
the country into which they enter. Both prior to 
and upon the outbreak of war they have acted, not 
in the interests of the country of their adoption, but 
as hostile and dangerous groups therein. They have 
been known even to carry on a system of espionage in 
the interests of a foreign power. 
Here it may be noted also that it is an open declara- 
tion of one country that it will do all in its power to 
spread its political doctrines throughout the world, 
with a view to changing the existing order of civilisa- 
tion into one—their own recent forced scheme—which 
so far has proved a ghastly failure, and has cost an 
untold number of lives, unspeakable misery, and wide- 
spread economic ruin. 
The whole situation may be summed up by saying 
that all immigration which is likely to be characterised 
by ulterior actions, subversive of the social regime and 
political development of the recipient people, ought 
to be met with hostility and prevented. Thus the 
:limination of such characters in future migration is