Ruins of Desert Cathay 241 - View to east from above left bank of Su-lo Ho - The snowy peaks in distance belong to the Alexander III range. Rai Ram Singh at work on the plane-table - The results of the surveying were published in the map set in Serindia and in the large map at the back of this book. Ram Singh became to ill later in the expedition and was replaced by Lal Singh., both experienced professionals of the Survey of India.