Life and letters of Fathers Ponziglione, Schoenmakers, and other early Jesuits at Osage mission. Sketch of St. Francis' church. Life of Mother Bridget. By W.W. Graves . .

http://www.archive.org/details/ponziglionescho00gravrich

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

The Mongol mission : narratives and letters of the Franciscan missionaries in Mongolia and China in the thirteenth and fourteenth centuries. Translated by a nun of Stanbrook Abbey.

http://www.archive.org/details/mongolmission008646mbp

Western missions and missionaries : a series of letters / by P.J. de Smet.

http://www.archive.org/details/westernmissionsa00smetrich

Last letters & further records of martyred missionaries of the China Inland Mission / edited by Marshall Broomhall.

http://www.archive.org/details/lastlettersfurth00unknuoft

Letters to a Quaker friend on baptism

http://books.google.com/books?vid=OCLC00615969

In the Far East : letters from Geraldine Guinness in China / edited by her sister.

http://www.archive.org/details/infareastletters00tayliala