Material included in this volume: repayment contracts: this volume includes material for 177 major contracts on 66 projects or division of projects where reimbursements are now being made to the Reclamation Fund. A total of 80 contracts have been paid in full. Most of these were made under the Warren Act. Material is also inserted pertaining to 38 repayment contracts on 19 projects covering a total obligation of more than $206,100,000, where repayment has not commenced. These projects are either still in the process of construction, or irrigation has just commenced and the area is in a development stage. Twelve additional projects where repayment negotiations are in progress are also mentioned. Descriptions are included of five projects which were considered failures and obligations to the United States canceled. Crop histories: Included in the volume are tables and graphs presenting material as to acreages in cultivation, crop production, and value of crops produced. A year-by-year tabulation for each project or unit shows the acreages in cultivation, the total gross crop values, and the average crop value per acre. Accompanying the table for each unit is a graph, usually prepared on a 5-year interval basis, showing the extent of acreage planted to various important crops. A study of these tables and graphs will furnish a review as to the development of an area, the trends in cropping practices, and the gross monetary returns, and can be correlated with the repayment accounts.