221. Number 221 - Leguminous Plants and their Associated Organisms: Memoir Collection: Core Historical Literature of Agriculture Publisher: Cornell University, Agricultural Experiment Station Publication Place: Ithaca, N.Y. Date: 1939 Format: Issue
222. Number 222 - The Effect of Sulfur Fungicides on the Photosynthesis and Respiration of Apple Leaves: Memoir Collection: Core Historical Literature of Agriculture Publisher: Cornell University, Agricultural Experiment Station Publication Place: Ithaca, N.Y. Date: 1939 Format: Issue
223. Number 223 - The Effect of Temperature and Relative Humidity on the Powdery Mildew of Roses: Memoir Collection: Core Historical Literature of Agriculture Publisher: Cornell University, Agricultural Experiment Station Publication Place: Ithaca, N.Y. Date: 1939 Format: Issue
224. Number 224 - Studies on Narcissus Mosaic: Memoir Collection: Core Historical Literature of Agriculture Publisher: Cornell University, Agricultural Experiment Station Publication Place: Ithaca, N.Y. Date: 1939 Format: Issue
225. Number 225 - The Culinary Quality of Apples as Determined by the Use of New York State Varieties: Memoir Collection: Core Historical Literature of Agriculture Publisher: Cornell University, Agricultural Experiment Station Publication Place: Ithaca, N.Y. Date: 1939 Format: Issue
226. Number 226 - Some Comparisons Between Analyses of Narrative and Film Records of Behavior and Guidance of Children: Memoir Collection: Core Historical Literature of Agriculture Publisher: Cornell University, Agricultural Experiment Station Publication Place: Ithaca, N.Y. Date: 1939 Format: Issue
227. Number 227 - The Effect of Sulfur Dioxide on the Nutritive Value of Alfalfa Hay: Memoir Collection: Core Historical Literature of Agriculture Publisher: Cornell University, Agricultural Experiment Station Publication Place: Ithaca, N.Y. Date: 1939 Format: Issue
228. Number 228 - The Calcium Content of the Foliage of Forest Trees: Memoir Collection: Core Historical Literature of Agriculture Publisher: Cornell University, Agricultural Experiment Station Publication Place: Ithaca, N.Y. Date: 1939 Format: Issue
229. Number 218 - The Effect of Temperature on the Photoperiodic Response of Spinach: Memoir Collection: Core Historical Literature of Agriculture Publisher: Cornell University, Agricultural Experiment Station Publication Place: Ithaca, N.Y. Date: 1939 Format: Issue
230. Number 219 - Neutralization Curves for the Humic Acids of Peat Soils: Memoir Collection: Core Historical Literature of Agriculture Publisher: Cornell University, Agricultural Experiment Station Publication Place: Ithaca, N.Y. Date: 1939 Format: Issue
