70 Kansas Academy of Science. 



ditures in a manner that will accomplish the desired ends. If the 

 energy of a water current builds great crooks and curves in a chan- 

 nel when allowed to run wild, then the same energy may be made 

 to straighten the same channel if properly applied. If a stream is 

 capable of doing sufficient work to transport vast amounts of ma- 

 terial necessary to build up its flood-plain scores of feet in thick- 

 ness and miles in width, then the same stream may be made to keep 

 its own channel free and clear of obstructions just as soon as the 

 mind of man becomes capable of directing the work. We are not 

 here dealing with the changeable whims of an individual, but with 

 the immutable and unchangeable laws of inanimate matter. Let 

 us all hope that in the near future our minds may be opened up to 

 a full comprehension of such laws and how to apply them to our 

 good, and that our hearts may be expanded so that we may all work 

 in perfect harmony in accomplishing these great ends. 



