Contents: Introduction --- Character of Irrigation from Missouri River --- Nature of the Problems --- Water-Right Filings (The Two Systems of Filing Claims to Water) --- Excessive Claims for Water --- Permits to Appropriate Water --- Fixing of Priorities and Amounts of Water Rights --- The Wyoming and Nebraska Laws --- Court Adjudications --- State Control of Streams --- Water-Right Laws in the Missouri River Drainage Basin (Water Laws of Colorado – Water Laws of Kansas – Water Laws of Montana – Water Laws of Nebraska – Water Laws of North Dakota – Water Laws of South Dakota – Water Laws of Wyoming – Water Laws of the Northwest Territories of Canada).