LA TOUCHE : GEOLOGY OF NORTHERN SHAN STATES. 



There are no lakes actually existing in the Northern Shan 

 , , , . States, but it is probable that the coal-basins 



Ancient lake basins. j-ti-j r 1 11 i • i 



or Lasnio, etc., were formerly open lakes, which 



were entirely silted up in late Tertiary times, or were drained 



by the deepening of the channels of the rivers which flow through 



them. 



From a sketch by the author. 



Fig. 1. The Nam Tu at Hsipaw. 



