234 Index. 



Sedge, vernal (see Oarex) 



Sheep's fescue (see Festuca oviua) 



Silica in barley and wheat crops, 89, 129, 142 



in hay "crop, 142, 147, 155, 164, 166, 170, 171, 173, 181, 184, 



192 



recovered, and not recovered, in crops, 203 

 Silicates, behaviour of, 167 

 Silicate of linie, 164 



of soda, 104, 164 



Smooth-stalked meadow grass (see Poa pratensis) 

 Soda, 129, 142, 155, 166, 170, 171, 173, 181, 183, 192, 205 



recovered, and not recovered, in crops, 203 

 Soda-liine process, 200 

 Soft brome (see Bromus mollis) 

 Soil, 6 ? 44, 133, 188 



distribution of nitrogen in, 194 

 inherent capabilities of, 52 

 Sorrel (see Rumex Acetosa) 

 Speedwell, germander (see Veronica) 

 Spring manuring, 97, 98, 188, 197, 225 

 Stellaria graminea, 138 

 Stitchwort, lesser (see Stellaria) 

 Straw as manure, 161, 164 



strength of, 130 

 Struggle for existence, 145. 223 

 Sulphate of soda, 175 



of potash, 181 

 Sulphuric acid in barley and wheat crops, 142 



in hay crop, 142, 155, 157, 170, 171. 173, 181. Ib4 



192, 205 



recovered, and not recovered, in crops, 203 

 Superphosphate of lime, 98, 100, 139, 153, 172, 174, 181, 188 

 Sweet vernal (see Anthoxanthum) 

 Synthetic method, 88 



TALL fescue (see Festuca elatior) 

 Taraxacum officinale, 138, 169 

 Temperature, 63, 70, 94, 95, 210 

 Timothy grass (see Phleum) 

 Trifoliuin, 221 



minus, 221 



pratense, 138, 152, 204, 221 



