34Q 



INDEX. 



Seeds, sap they require, 217 



ripening, 242 



Sensation in plants, 104. 252 

 Shanking of grapes, 24, 298 

 Sheltering, laws of, 218 

 Shoots, to promote, 167 

 Silica, 84 



in soils, &c., 80 



Siliqua, 213 



Skin of fruit, its influence, 224 



Small-foliaged plants, soil for, 83 



water for, 75 



Smell of soil, 121 

 Smithia sensitiva, 105 

 Snow useful as a shelter, 221 

 Soil in pots, 78 



poisonous components of, 313 



temperature of, 17 



influence of colour, 18 



rate of heating, 18, 55 



cooling, 19, 85 



depth it is frozen, 20 



wet and cold, 24 



when moist absorbs oxygen, 



55 



stirring beneficial, 55, 64 



how regulated, 57 



force required to dig, 63 



with which it adheres, 



63, 122 



composition, 82 



fertile, 82 



relation to moisture, 83 



will not grow some crops, 86 



for early and late crops, 87 



its soluble matters, 95. 



specific gravity, 121 



smell, 121 



feel, 122 



Solandra grandiflora, 171 

 Soluble matter in soil, 95 

 Sowing, 8 

 guides for time of, 25 



- proper depths for, 39 

 rule for, 47 



Spartium scoparium, 117 

 Spiked rush, 119 

 Spinach, soil for, 83 

 Specific gravity of soils, 121 



— heat of water and air, 227 



Speck in potatoes, 297 



Spot in pelargonium, 296 



Sprit, 120 



Stable manure, its components, 



89 

 Stamens, 185 



absorb oxygen, 189 



Standards produce best fruit, 133 

 Steam as a source of heat, 230 

 Steeping seed, 31, 111 

 Stem of plants, 125 



pores of the, 130 



absorbent, 130 



not essential, 133 



Stems, W'hy they rise out of the 



soil, 45 

 Sterile soils, their characters, 112 

 Sterility, 86 , 



Stillness preserves a plant from | 



injury by cold, 319 ' 



Stimulating manures, 104 

 Stock, its influence over the scion, 



154—160 

 Storing fruit, 239 



room, 241 



Strawberries, 53 

 Strobile, 213 

 Subsoils, 83 

 Sugar, 94 



its formation, 215 



Sulphate of lime, 81, 96 

 Sulphurous acid destroys colour of 



flowers, 191 

 Superfoetation, 200 

 Sweet-gale, 120 

 Synchronisms of nature, 25 



Tank system of heating, 228 

 Tap-rooted vegetables, to grow fine, 

 51 



