A set of 50 photographs and associated handwritten descriptive notes, acquired from the Imperial Russian Geographical Society in St. Petersburg. The complete notes, "1904 View of Great Tibet", are available at: http://collections.lib.uwm.edu/u?/tibet,94
Ou-su chiang. N.E. of Central Tibet (ie. Lh'asa).(1) This must be the Kyi-chu (p. 254)
Waddell, L.A. (1899). The Buddhism of Tibet or Lamaism. London: Luzac & Co. Available through Google Books at: http://books.google.com/books?id=V-DJFl8VBhEC&pg=RA1-PR7&d