The mission as a frontier institution in the Spanish american colonies, by Herbert E. Bolton.

http://www.archive.org/details/missionasfrontie00boltrich

By the equator's snowy peak a record of medical missionary work and travel in British East Africa by E May Crawford

http://www.archive.org/details/equatorssnowype00crawuoft

The law and custom of slavery in British India : in a series of letters to Thomas Fowell Buxton, Esq. by William Adam; Thomas Fowell Buxton, Sir

http://books.google.com/books?id=plhkPFrJ1QUC&dq=law+and+custom+of+slavery+in+British+India

Up and down the north Pacific coast by canoe and mission ship / by Rev. Thomas Crosby, missionary to the Indians of British Columbia.

http://www.archive.org/details/upanddownnorth00crosrich

Daybreak in Livingstonia; the story of the Livingstonia mission, British Central Africa, by James W. Jack.

http://www.archive.org/details/daybreakinliving011984mbp