INDEX 



483 



Seeds, caulicle of, 1.* 2,* 3,* 4 * 20.* :>8 * 

 chaff of, holds water, 29. 

 diastase in, 168. 169. 

 dispersal of, hy animals, 32':;.* 324,* :j2r.. 



— — — mechanical contrivances, J20, 



321.* 



■ — water, 32o. 



ivind. 321, 322.* 323.* 



effect of extremes of temperature on, '\h'l. 



embryo, 288, 312. 



embryo of. 1.* 2,* 3.* 4,* 20.* 56,* '>^,* 



fat in, 165, 437. 



ferments in. 166-172, 



food conveyed to, 313, 314. 



— in. 65.* 164-180, 437. 



— transformed in, 314. 



force exerted by swelling of, 48, 49,* 50. 



51 *52. 53.* 54* 

 germ of. See Seeds Embryo of. 

 germination of, 1-86. 

 affected by air, 5,* 6. 



— — alkali soils, 18. 



depthof planting, 38. 39,* 40,* 



41. 



— — — — drying, 47. 



— — heat, 5,* 6. 



light, 47. 



— — — — sea water, 18. 



— — water, 4, 6. 



on surface of soil. 69. 



quickness of. 46. 



getting above ground of. 71.* 72,* 73,* 74,* 

 75,* 76, 77,* 79.* 



— down into ground of, 80,* 81,* 82,* 8:;, 



84,* 85,* 86.* 

 heat set free by, 35. 36.* 

 hilum of, 1,* 2. 10. 

 immature, germination of, 43. 

 lipase in, 170. 

 micropyle of, 8,* 9. 

 microscopic structure of, 65,* 66, 67, 177, 



178. 

 needs of, 4. 

 oil in, 165, 437. 



osmotic action of, 17, 18, 60, 63, 64, 67. 

 path of water in, 22, 23,* 24. 

 penetration of soil by, 80,* SI.* 

 pocket around caulicle of, 20,* .')8 * 

 preservation of, 7, 28, 45, 46, ?,%U. 



Seeds, proteid in, 437. 

 pepsin in, 172. 



plumule of, 1,* 2,* 3.* 4,* 20.* 58, "^ 59.* 

 protelds in, 165, 166. 

 respiration of, 33, 34,* 35, 36.* 

 resting period of, 43. 44. 

 restored hy ferments, 44. 

 ripening of, 314. 

 starch in. Go,* 164, 437. 

 structure of, 1,* 2,* 3,* 4,* 20 * 57,* 58," 



59,* 65,* 180.* 

 struggle of, for existence, -'il2. 

 sugar in, 164, 165. 

 small, treatment of, 41, 42. 

 testing of, 44, 45. 

 transportation of, 282. 

 trypsin in, 172. 

 vitality of, 44. 



water in, 



* 4:J7 



how obtained, 6-30 (7,* 8.* 9,* 15,* 



19,* 20.* 21,* 22,* 23,* 26,* 27*J . 



wrinkling of, in water, 8.* 

 Seed-beds, screens for, 41.* 



soil for, 41. 

 Seed-case, 3,* 4,* 288.* 289,* 290, 360. 

 Seeil-cover. 1,* 2 * 3,* 4,* 20. 21. 23.* 24. 



escape from, 48, 49,^^ 50, 51*-54,* 55 * .57,* 

 58,* 59.* 60,* 61,* 62,* 63.* 



function of, 47, 48. 



hinders absorption of air, 30,* 31, 32. 



heat, 42,* 43. 



water, 8,* 9*-15,* 16*-19,* 20, 21,* 



22,* 23^-25. 



holds water, 28, 29. 



openings in, 8,* 9*-15.* 16*-19,* 20, 21,* 

 22.* 23*-25. 



osmosis through, 16,* 17,* 18, 19,* 20. 



place of rupture of, 54, 58. 

 Seed-leaves, 1,^ 2,* 3,* 4,* 178, 17!.', 180.* 



contrasted with foliage-leaves, 180-186. 



function of, 163,* 164-179, 180.* 



number of, 226. 

 Seedlings. See Seed. 

 Selection, 331, 433-453. 

 Self-pollination, 301, 302. 

 Self -sterility, 309. 

 Senecio. See Ragweed. 

 Septic tank, 382, 

 Serum, 171. 



