Cooper, Joseph. <br/><br/>
The lost continent, or, Slavery and the slave-trade in Africa, 1875 :  with observations on the Asiatic slave-trade, carried on under the name of the labour traffic, and some other subjects. 

 - London :  Longmans, Green,  1875. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Slavery -- Africa.--Slavery -- Africa.<br/>Slave-trade -- Africa.--Slave-trade -- Africa.<br/>Slaves -- Emancipation.--Slaves -- Emancipation.