1. Harold H. Houtz. 1941. The colloidal differentiation of starches. Paper Trade Journal, 113 No.6: 32–36.
2. (Information obtained from M. C. Bartlett, Maine Institute of Potato Starch Manufacturers, by correspondence, November 13, 1950.)
3. (Information obtained from John W. Swanson, The Institute of Paper Chemistry, Appleton, Wis., by correspondence, April 3, 1951.)
4. (Information obtained in conference with R. H. Thompson, Rogers Bros. Seed Co., Food Products Division, Chicago, I11., November 2, 1948.)
5. R. H. Treadway. 1949. Potato flour and its use in the baking industry. The Bakers Digest, 23: 82–84.