90 



INDEX. 



Liber, 20. 



Manures, 81. 

 Medullary rays, 20. 



Nodi, 19. 

 Nitrogen, 15. 



Ovula, 51. 



Petals, 4. 

 Pistill, 41. 



Poisonous gases, 64. 

 Pollen, 41. 

 Potted plants, 78. 

 Perspiration, 64. 



Root, 11. 



Rotation of crops, 16. 



Sap, its motion, 57. 



, accumulation of, 59. 



Sap-wood, 19. 

 Scion, 25. 

 Seed, 51. 

 Sepals, 34. 



Seed-saving, 52, 56. 

 Silver grain, 20. 

 Spiral vessels, 9. 

 Sport, 38. 

 Spongioles, 11. 

 Stamens, 41. 

 Stem, 18. 

 Sterility, 36, 59. 

 Stigma, 42. 

 Stock, 25. ' 

 Stomata, 11. 

 Stoning, 40. 

 Sweetness, 48. 



Tissue, 1. 

 Training, 62. 

 Transplantation, 77. 

 Tubers, 11. 



Varieties, 38. 

 Vascular tissue, 8. 

 Vivification, 42. 



Wood, how formed, 8. 

 Woody fibre, 8. 

 Worn out soil, 16. 



