APPENDIX C. 349 



been improved under authority of Congress, whenever, in his judgment, 

 such regulations are necessary to protect such improved channels from 

 injury, or to prevent interference with the operations of the United States 

 in improving navigable waters or injury to any plant that may be employed 

 in such operations. Such rules and regulations shall be posted, in con- 

 spicuous and appropriate places, for the information of the public; and 

 every person and every corporation which shall violate such rules and 

 regulations shall be deemed guilty of a misdemeanor, and, on conviction 

 thereof in any district court of the United States within whose territorial 

 jurisdiction such offense may have been committed, shall be punished by 

 a fine of not exceeding five hundred dollars, or by imprisonment (in the 

 case of a natural person) not exceeding six months, in the discretion of 

 the court." 



