31. Number 129 - Improving the Corn Crop by Selection and Breeding: Cornell reading course for the farm Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1917 Format: Issue
32. Number 129, Supplement - Improving the Corn Crop by Selection and Breeding. Discussion Paper: Cornell reading course for the farm Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1917 Format: Issue
33. Number 130 - Rearing Chickens: Cornell reading course for the farm Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1917 Format: Issue
34. Number 130, Supplement - Rearing Chickens: Cornell reading course for the farm Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1917 Format: Issue
35. Number 131 - Contagious Abortion of Cattle. Sterility, Abortion, Calf Scours: Cornell reading course for the farm Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1917 Format: Issue
36. Number 131, Supplement - Contagious Abortion of Cattle. Discussion Paper: Cornell reading course for the farm Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1917 Format: Issue
37. Number 120 - Hotbeds and Cold Frames: Cornell reading course for the farm Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1917 Format: Issue
38. Number 120, Supplement - Hotbeds and Cold Frames. Discussion Paper: Cornell reading course for the farm Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1917 Format: Issue
39. Number 121 - The Culture of Garden Roses: Cornell reading course for the farm Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1917 Format: Issue
40. Number 122 - Planting the Home Vegetable Garden: Cornell reading course for the farm Collection: Core Historical Literature of Agriculture Publisher: New York State College of Agriculture Publication Place: Ithaca, N.Y. Date: 1917 Format: Issue