15. Wiley: Foods and Their Adulteration.
16. Minnesota Experiment Station Bulletin No. 63: Miscellaneous Analyses.
17. U. S. Department of Agriculture, Bureau of Chemistry Bulletin No. 13, Part 8: Canned Vegetables.
18. Leach: Food Inspection and Analysis.
19. U. S. Department of Agriculture, Farmers' Bulletin No. 256: Preparation of Vegetables for the Table.
20. U. S. Department of Agriculture Year Book, 1905: Fruit and its Uses as Food.
21. Handbook of Experiment Station Work, 1893.
22. U. S. Department of Agriculture, Division of Chemistry Bulletin No. 94: Studies on Apples.
23. U. S. Department of Agriculture, Bureau of Chemistry Bulletin No. 69: Fruits and Fruit Products.
24. U. S. Department of Agriculture, Farmers' Bulletin No. 203: Canned Fruits, Preserves, and Jellies.