Albert Terrien de Lacouperie, Encyclopædia Britannica, Ninth Edition (1888)
“ Our knowledge of the geography of the country is complete only for portions of western Tibet, which are subject to the maharajah of Kashmir, and have been regularly surveyed. This knowledge has been largely supplemented during the last twenty years by the work of natives of India the so-called trans-Himalayan explorers of the Indian Survey, notably Pandits Nain Singh and Krishna (A K) who have been trained to carry route surveys through regions which they may, but Europeans may not, enter. ”
