... The work he performed for this society was all gratuitous, and apparently prompted from his love of humanity, and desires to be instrumental in building up a Negro Nationality in Africa... 
Ida B. Wells-Barnett 「Mob Rule in New Orleans」
...“Finally, however, being a shrewdcreature, he solved the problem and incidentallywon for himself a great dealof gratuitous advertising...
Various 「Ainslee's magazine, Volume 16, No. 3, October, 1905」
...On the other hand he must reasonably have been offended bythe advice so frequently given him in gratuitous and patronizing fashion...
Various 「The Journal of Negro History, Vol. I. Jan. 1916」
... It will be said that the conservation of the soul after the death of the body, is an effect of the Divine Omnipotence: but this is supporting an absurdity by a gratuitous hypothesis...
Paul Henri Thiery (Baron D'Holbach) 「The System of Nature, Volume 1」
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