For your research on the Eastern provinces of the Ottoman Empire in the 19th century, you will find on this website the following tools:
Geographical Annotations to travel reports, enabling you to trace the routes of the travellers on a modern map
A place name index, containing the place names mentioned in travel books, with direct links to the relevant digitalize sources.
A tribe index, listing, in alphabetical order, names of Kurdish, Arabic and Turkoman tribes in the region. Offers direct links to the relevant pages of primary contemporary sources.
Personal name index: Alphabetical list of personal names found in documents from the British National archives, 1890-1900. Specially interesting for genealogical researchers.