XX ILLUSTRATIONS 



Fio. PAGE 



32. The operation of the hand-pump in fighting a surface fire 186 



33. A plantation of beach grass on shifting sand 197 



34. Planting white pine on a recently felled area. The tops and other 



litter on the ground 203 



35. A plantation of white pine established under an overwood of oak 



and chestnut 206 



. 36. Sowing yellow pine seed with the cyclone seeder 214 



37. A pure stand of white pine established by broadcast seeding on 



plowed land. Thirty years old 215 



38. The same stand shown in Fig. 37 after a thinning which removed 



13 cords of wood per acre 216 



39. Diagram showing the arrangement of the seeded places in partial 



seeding 217 



40. Sowing Douglas fir seed in small, prepared seed spots 223 



41. Tools useful for making small seed spots 225 



42. The Eckbo seed planter 226 



43. Torsion rake 227 



44. Spiral borers 227 



45. Acorn planter 228 



46. Direct seeding with the corn planter 229 



47. A forest nursery protected by high forest 238 



48. Nursery plan 239 



49. Plan of the sorting, storage and packing rooms at the North- 



Eastern Forestry Company's nursery, Cheshire, Conn 242 



50. Interior hedges in a forest nursery 243 



51. The Skinner overhead system of irrigation in operation 247 



52. Diagram of the arrangement of the seedbeds in the compartment . 263 



53. Types of rollers used in forming seedbeds 264 



54. Types of marking boards 271 



55. The Sauer type of drill roller 272 



56. The Spitzenberg drill former 272 



57. Using the V-shaped seeding trough 274 



58. The double-V seeding trough 274 



59. Eszlinger's seeding lath 275 



60. Spitzenberg seed coverer 276 



61. The Planet Jr. seed drill 277 



62. Special rakes for breaking the surface soil of seedbeds 278 



63. Circular sieve 279 



64. Rectangular sieve 279 



65. Seedbeds covered with a mulch of leaves held in place with lath 



screens 286 



66. Seedbeds covered with burlap after broadcast seeding 287 



67. Standard seedbed boxes completely enclosed during the period of 



germination 289 



68. Tool for breaking the surface crust of seedbeds prior to germination 292 



69. High cover formed of brush on a framework of posts and poles. . . 294 



70. High cover formed of posts and scantlings covered with mats 



woven from narrow slats and wire . . 295 



