...But if any doubts, difficulties, or controversies,should arise between the said officer andthe managers for the said company, they shall bereferred to the determination of the governor ofBuenos Ayres... 
W. E. B. Du Bois 「The Suppression of the African Slave Trade to the United States of America」
...—Frequent controversies on the subject of the Slave Trade...
Thomas Clarkson 「The History of the Rise, Progress and Accomplishment of the」
...Consequently itoften happens that persons arguing for or against certain systems ofeducation for Negroes, have these controversies in mind and miss the realquestion at issue...
Booker T. Washington, et al. 「The Negro Problem」
...Yet,by avoiding the real controversies and being unafraid of mere questionsof definition, we may trace a great human movement withconsiderable definiteness...
W.E.B. Du Bois 「The Negro」
...But they are commonlyneglected in controversies as to the origin and history of humanmarriage...
Northcote W. Thomas 「Kinship Organisations and Group Marriage in Australia」
...Annoying controversies arose; but he neverthelesscontributed a good many other most important papers in optics, includingobservations in diffraction, and colours of thin plates...
Oliver Lodge 「Pioneers of Science」
...Controversies about religiousmatters might, and did, grow more acute; controversies about betteringthe position of the working classes only began with the breaking down ofChristianity...
Dr. D.M. Brooks 「The Necessity of Atheism」
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