282 



Index. 



London purple, L>S. 



Low plants often destroyed by ice, 



124. 



Magnesium, part played by, in 

 plant, 45. 



Mallet cuttintis, 208. 



Manure increases water-holding 

 capacity ol s )il, 45. 



Manurial value of leaves, 84. 



Maturative pruning, 2.')o. 



Maturity of plants, influence of 

 drought on, 138. 



Maximum defined, 25. 



Mealy bug, 163. 



Melons, screen-covered frame for 

 protecting hills of, loii. 



Mice, damage from, 154. 



Minimum defined, 25. 



Moisture, an em 'my to stor.ed seeds, 

 107; essential to gei'mination, 25; 

 excessive, causing cracks in fruits 

 and vegetables, 136; excites root 

 growth, 65; excessive, in air in- 

 jurious to plants, 137; insufficient, 

 in air causing excessive trans- 

 piration, 137; insufficient, in soil 

 retards growth, 18S. 



"Monocotyledones defined, 36. 



Monceeious flowers, 100. 



Mound-layering, 187. 



Mulching, tends to prevent drought, 

 i39; transplanted stock, 239. 



^Muriate of potash, 151. 



Names, scientific, why used, 19. 



Nitrates in the soil, sources of, 149. 



Nitrification, 149, 150. 



Nitrogen, 14S, 150; in protoplasm, 44; 

 in rain and snow, 150; sources of, 

 in plant, 44; stimulates growth, 

 146. 



Nodes defined, 78. 



Northerly exposure least trying to 

 plants in winter, 125. 



Notching, 243, 254. 



Nursery trees benefitted by trans- 

 planting, 75. 



Objects of grafting, 210; of pruning, 

 245. 



Oedema in plants, caused by ex- 

 cessive watering, 135. 

 Onion mildew, 174. 

 Optimum defined, 25. 

 Orange rust, 172. 

 Organic manures, partially decona- 



posed, act more promptly than 



fresh ones, 150. 

 Organic matter, importance of, in 



soil, 68. 

 Osmosis defined, 60. 

 Ovary, 95. 

 Overbearing should be prevented, 



103. 



Ovule, i»5. 

 Oxygen, essential to germination, 



26; necessary to life of roots, loiy) 



source of, in plants, 44. 

 Oyster-shell bark-louse, 161. 



Packing plants for transportation, 

 229. 



Pales, 97. 



Palets, 97. 



Palisade cells, 49. 



Parasites, animal, 154; defined, 21; 

 fiowering or phanerogamic, 171; 

 fungous, 171; injurious, 154; vege- 

 table, 170. 



Pai'enchyma, 51. 



Paris green, 158. 



Pear, blight of, 172, 254. 



Peeling the stems of trees, 56, 254. 



Perfect flowers, 100. 



Persian insect powder, 159. 



Petals, 94. 



Phosphorus, 151; part played by, in 

 plants, 45. 



Picturesqueness, pruning for, 247. 



Pinching defined, 242; stimulates 

 branching, 80; to promote fiower- 

 ing. 252 



Pistil, 95. 



Pith, 52. 



Plant food, elements in, 44; ele- 

 ments of, likely to be deficient, 45; 

 from soil must be dissolved by 

 soil water, 44; in soil, reduced by 

 crop growing, 147; sources of, 43. 



Plant improvement, how explain- 

 ed, 259. 



