1. Analysis of Ragweed Pollen;Heyl;J. Am. Chem. Soc,1917
2. The Protein Extract of Ragweed Pollen;Heyl;J. Am. Chem. Soc,1919
3. The Ragweed Pollen Proteins;Heyl;J. Am. Chem. Soc,1920
4. Skin Tests on Hay Fever Cases With (Chemically) Different Fractions of Ragweed Pollen;Caulfeild,1925
5. Studies on Pollen and Pollen Extracts. V. Skin Reactions to Pollen Extracts;Moore;J. Allergy,1930