INDEX 



Screenings, weed seeds in, 33 

 Scrophularia aquatica, 329, 398 



nodosa, 329, 399 



ScrophulariacecB, 109, 199, 268, 307, 



329, 398 

 Scutch, 132 



Scutellaria galericula'a, 330, 400 

 Sedges, 4, 12, 28, 140, 214, 233, 339, 



405 

 Seed testing, 353 



for farmers, 363 



germinating test, 365 



importance of, 358 



purity test, 365 



stations, 353 



taking of samples, 364 

 Seed-catching box for reapers, 30 

 Seeding, prevention of, 30 



Seeds produced by various weeds, 23 



sowing of bad, 144 



clean, 31 



true value of, 367 

 vitality of, 23 



Self-heal, 159, 140, 199, 233, 400 

 Senebiera Coronoptts, 68, 387 

 Senecio Jacobaa, 6, 40, 187, 395 



latifolius, 189 



vulgaris, 24, 27, 96, 395 



Sheep destroy weeds, 36, 40, 1 50, 189 



Sheep-dip as weed killer, 350 



Sheep's Bit, 396 



Shepherd's Needle, 81, 392 



Purse, 10, n, 12, 24, 27, 40, 



63. 233, 349, 387 

 Sherardia arvensis, 85, 369, 393 

 Shirley Poppies, 5 

 Silenc inflata, 69, 157, 369, 387 

 Silver-weed, 28, 78, 140, 234, 390 

 Sinapis arvensis, 10, II, 24, 27, 58, 



283, 386 



" Singling" of cultivated crops, 6, 10 

 Sisymbrium Alliaria, 10, 58, 386 

 ojficinale, 58, 369, 386 



Thaliana, 47 



Shim angustifolium, 328, 391 



latifolium, 391 



Skellock, 58, 386 



Skull-cap, 330, 400 



Slender Foxtail, 126, 406 



Slime, 343 



Small-flowered Hairy Willow Herb, 



1 66, 391 



Small Toadflax, 47 

 Smilacin, 287 



Smooth Brome Grass, 1 3 1 

 Soda, for killing weeds, 39, 349 

 Sodium arsenite, 44, 262 

 Soft Brome Grass, 147, 223, 233, 407 

 Soils, quality of, indicated by weeds, 

 27 



weeds of damp, 28 



good, 28 



poor, 28 



Solanacea, io3, 300, 398 

 Solanine, 304, 307 



Solatium Dulcatnai a, 300, 302, 398 

 guineense, 305 



nigruni, 108, 304, 398 

 tuberosum, 307 



villosum, 305 



Sonchus arvensis, 24 47? 101, 396 



asper, 369 



oleraceus, 8, 1 1, 27, 99, 369, 396 



sp., 140 



Sorrel, 12, 146, 147, 233 



Common. 139, 140, 151, 206, 

 401 



Sheep's, 28, 41, 119, 151, 204, 



308, 401 



- Wood, 389 



Sour Dock, 139, 140, 206 



Sourock, 206 



Sow Thistle, 7, 8, u, 24, 28, 140 



Annual, 27, 99, 396 

 Corn, 101, 396 



- Perennial, 47, 101, 396 

 Sowing of bad seed, 144 



of clean seed, 31 

 Space taken up by weeds, 6 

 Sparganium ramosum, 333,406 



simplex, 334, 406 

 Spear Thistle, 178, 394 

 Spearwort, 325, 384 

 Greater, 325, 384 



- Lesser, 155, 279, 325, 384 

 Speedwell, Corn, 109, 233, 399 



Common or Germander, 140, 



iP9> 339 

 Ivy-leaved, 109, 399 



- Water, 330, 399 

 Spergula arvensis, 8, 71, 151, 388 

 Sphagnum, 229. 408 



Spindle Tree, 288, 389 

 Spircea Ulmaria, 163, 390 

 Spotted Orchis, 208, 403 

 Spraying 



Anthemis sp., 47 



Bindweeds, 47 



