10th Century World Map. Adolf Erik Nordenskiöld, Cambridge Union Society.1881 
15th Centurry World Map Adolf Erik Nordenskiöld, Cambridge Union Society. 1881 
The Slave Trade of East Africa. Edward Moss Hutchinson. 1874 
New Zealand (Report on the statistics of New Zealand 1890) 
Races of mankind 1891. Alfred Caldecott 
Malayasia 1946, E. E. Dodd and Fabian Society 
rockcutspaper 