viii CONTENTS 



EXERCISE PAGE 



30. Early Growth of the Oat Plant 74 



31. Judging Oats 76 



32. The Treatment of Seed Oats for Smut 78 



33. The Production of Oats in the United States 80 



34. Early Growth of the Rye Plant 83 



35. Early Growth of the Barley Plant 84 



36. The Identification of Legume Seeds 86 



37. Purity Test for Grass, Clover or Alfalfa Seed 88 



38. A Study of Weed Seeds 92 



39. Weed Dissemination 94 



40. A Field Study of Weeds 97 



41. Germination Test for Clover or Grass Seed 101 



42. A Field Study of Legumes 104 



43. A Study of Soy Beans 106 



44. A Study of the Potato 108 



45. A Field Study of the Potato Ill 



46. Treatment of Seed Potatoes for Scab 113 



47. A Laboratory Study of Cotton 115 



48. A Study of Cotton in the Field 118 



49. A Study of Rice 121 



50. Planning the Home Garden 122 



APPENDIX 

 To Observe Corn Day 129 



