420 J' T. Jutson: Sand Ridges. 



the Comet Vale district in the summer of 1916-1917, and the early- 

 part of the winter of 1917, the present dominant winds also- 

 appear to be westerly, and this is confirmed by observation of 

 blown sand in regard to the so-called " spinifex " plant, the direc- 

 tion of inclination of certain trees, and the movement of the sand 

 along the railway line where t^e removal of the vegetation has- 

 allowed the sand to move more rapidly than it otherwise would do.- 



