Exploring for Gemstones on the Upper Mekong by H. Warington SmythExploring for Gemstones on the Upper Mekong Northern Siam and Parts of Laos in the Years 1892 1893 by H. Warington Smyth White Lotus Co., 1998, 109 pages, ISBN 9748434249, b&w illustrations, paperback Very Good Condition, a little edge and shelf wear, corners slightly curved 'This is the account of a six month journey from Bangkok to Luang Prabang and through Nong Khai and Korat. The authors mission was to explore the regions opposite Chiang Khong, on