xx LIST OF ILLUSTRATIONS 



** 



FIGURES PAGE 



15. Twig showing terminal and lateral buds 28 



16. Peach twig showing habit of bearing 28 



17. Spur showing scars where apples have been borne ... 30 



18. Portion of a cross-section of a leaf showing different cells . 31 



19. Diagram illustrating functions of leaves 32 



20. The young pea plant 40 



21. The bean seed ' 41 



22. Germination of pumpkin seed showing peg catching and 



removing testa 42 



23. Exterior of the flat surfaces of a kernel of corn .... 42 



24. Longitudinal section of a kernel of corn 43 



25. Bean coming through the ground, the cotyledons being pulled 



out 44 



26. Stratification of seeds in box 45 



27. Tip layer, showing early growth of tip 55 



28. A simple layer 55 



29. Serpentine layer 55 



30. Continuous layer 56 



31. Mound layer 56 



32. Callusing of cuttings 58 



33. A leaf-cutting 58 



34. Root-cutting of the blackberry 59 



35. Hardwood cutting of the currant 60 



36. Single-eye cutting of the grape 61 



37. Softwood cutting of the carnation 62 



38. Corm of gladiolus growing about old corm .64 



39. A simple propagating oven 66 



40. Method of planting cuttings in a trench 66 



41. A budding-knife 73 



42. Making the longitudinal incision preparatory to budding . 73 



43. Making the cross-cut of the "T" with a rolling motion of the 



knife 74 



44. Cutting the bud 74 



45. Inserting the bud 75 



46. The bud inserted 75 



47. The bud tied with string 75 



48. Twig-bud cut ready for insertion 76 



49. Patch-budding ....*. 76 



50. H-budding .......... 76 



51. Chip-budding . . . 76 



52. Whip-grafting 79 



