COMPARATIVE COST AND VALUE OF FOODS 231
Cost and Nutrient Content of Foods; How to compare Two Foods as to Nutritive Value; Cheap Foods; Expensive Foods; Nutrients Procurable for a Given Sum; Examples; Comparing Nutritive Value of Common Foods at Different Prices; Cost and Value of Nutrients.
Human Foods and Their Nutritive Value · The Wunder Library — complete classics, free to read, with narration.