...Increase of immigration reduced this disproportion, but Negroescontinued to be imported in such numbers as to affordconsiderable revenue from a moderate duty on them... 
W. E. B. Du Bois 「The Suppression of the African Slave Trade to the United States of America」
...The statistics of Cape Palmas show the population to be on the increase, independently of immigration...
Horatio Bridge 「Journal of an African Cruiser」
...It is this paradox that brings us to-day in the South to a fourthsolution of the problem: Immigration...
Booker T. Washington 「The Negro in the South」
...We may, some of us, cherish high tariff principles and believe in restricting the immigration...
Various 「Ainslee's, Vol. 15, No. 5, June 1905」
...The competitionamong the latter for immigration has induced low prices andsuperior facilities for examination...
W. E. Webb 「Buffalo Land」
...On the other hand, the great autumnal immigration takes placethroughout the month...
Douglas Dewar 「A Bird Calendar for Northern India」
...As the fear of Negro immigration increased the law of 1804 was found to beinadequate...
Various 「The Journal of Negro History, Vol. I. Jan. 1916」
...Reference is here made to the "Black Laws" of Ohio, passed to preventthe immigration of persecuted blacks from the South into that commonwealth...
Various 「The Journal of Negro History, Vol. I. Jan. 1916」
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