This is the fourth publication in the series dealing with the present agricultural emergency in Iowa. The three preceding circulars are: 1. The Situation Today. 2. The Causes of the Emergency. 3. The Voluntary Domestic Allotment Plan. The present circular contains a revision of data appearing in Current Economic Series Report No. 6, "Farm Mortgage Debt in Iowa," issued in October, 1927, and now out of print. In addition, new data are presented and the statistical series are brought up to date, 1925 being the last year previously reported. The authors wish to acknowledge the assistance of George Westcott in collecting the information; the cooperation of county officers, and aid in preparation of the manuscript by members of the Agricultural Economics Department.