SUMMARY AND CONCLUSIONS. HI 



range on the surface of the earth. If the conclusions, drawn from 

 a study of the Himalayas, are corroborated by the study of other 

 mountain ranges, an important step forward will have been made, 

 and the problem will become one of accounting for the excess of 

 support, of which the mountains themselves are but a secondary 

 result and manifestation. 



289 ] 



