Famous Food Authorities.
- Dr. Graham Lusk, [7], [13]
- Physical Culture Mag., [8], [13]
- Dr. Harvey W. Wiley, [8]
- Dr. Gordon J. Saxon, [8]
- Dr. J. H. Kellogg, [9], [10], [12], [14], [15], [26], [30]
- Professor Cajori, of Yale, [11]
- Dr. Hoobler, Detroit, [11], [15]
- Alfred W. McCann, [13]
- Inter-Allied Scientific Food Commission, [13]
- Dr. Elmer Lee, [26]