20 MTSCELLANEOtrS PAPERS. 



liundred pounds of seed that would grow of the best quaHty cost 

 SI 5.59, while one hundred pounds that would grow of the poorest 

 quality was imported at a cost of $20.39. 



This low-grade seed always carries a large number of weed seeds, 

 fifty kinds being found in each of two lots. Of that from Germany 

 all but five lots contained dodder seed. 



In sowing seed of the average quality shown in Table I at the rate 

 of S pounds to the acre there would be about nine weed seeds sown 

 per square foot, including three dodder seeds to every 2 square feet.- 



Below is given the number of each kind of weed seeds found in 

 the lots an analysis of which is given in Table I. 



NUMBER OF WEED SEEDS TO THE POUND IN SIXTY-ONE SAMPLES OF LOW-GRADE RED 

 CLOVER SEED IMPORTED DURINi! THE YEAR ENDED JUNE 30, 1906. 



Sample No. 2945. — Black-seeded plantain, 95,580; lady's-thumb, 1,530; knotweed, 

 90; spurge, 1,440; mayweed, 450; catmint, 180; green foxtail, 4,320; yellow foxtail, 

 450; buckhorn, 1,890;' bracted plantain, 540; chickweed, 270; curled dock, 1,260; 

 bitter dock, 540; sorrel, 810; healall, 540; peppergrass, 360; wild carrot, 360; small 

 crab-grass, 6,480; crab-grass, 5,670; slender paspalum, 1,350; pennyroyal, 2,700; 

 stink-grass, 90; yellow trefoil, 540; five-finger, 180; l)arnyard grass, 90; spiny sida, 

 90; sedge, 90; three-seeded mercury, 270; vervain, 720; tumbling amaranth, 1,620; 

 rough pigweed, 900; lamb's-quarters, 1,080; witch-grass, 7,470; spreading panicum, 

 990; prickly lettuce, 90; other weed seeds, 3,420. 



Total weed seeds to the pound, 144,450. 



Sample No. 2946. — Buckhorn, 16,200; clover dodder, 38,160; wild carrot, 5,256 

 healall, 4,608; low hop-clover, 648; plantain, 72; sorrel, 2.808; yellow trefoil, 144 

 wild chicory, 432; vervain, 432; field camomile, 360; mayweed, 72; woodrush, 72 

 mouse-ear chickweed, 72; lamb's-quarters, 72; hawkweed picris, 72; round-leaved 

 toad-flax, 72; small-flowered crane's-bill, 216; ])ird's-fo()t trefoil, 72; other weed seeds, 

 1,728. 



Total weed seeds to the pound, 71,568. 



Sample No. 2947. — Buckhorn, 13,860; black-seeded plantain, 3,150; bracted 

 plantain, 90; plantain, 90; yellow trefoil, 540; clover dodder, 3,600; Chilean clover 

 dodder, 540; wild carrot, 3,060; sorrel, 1,350; curled dock, 270; vervain, 1,080; white 

 vervain, 180; green foxtail, 810; lamb's-quarters, 810; healall, 630; bird's-foot tre- 

 foil, 360; hop-clover, 360; low hop-clover, 90; wild chicory, 270; kidney vetch, 90; 

 witch-grass, 180; knotweed, 180; lady's-thumb, 90; small crab-grass, 90; ox-tongue, 

 90; spurry, 90; alfilaria, 90; other weed seeds, 810. 



Total weed seeds to the pound, 32,850. 



Sample No. 3101. — Green foxtail, 96,135; witch-grass, 1,020; plantain, 595; 

 lamb's-quarters, 425; yellow trefoil, 595; small crab-grass, 255; lady's-thumb, 170; 

 three-seeded mercury, 85; ragweed, 85; other weed seeds, 340. 



Total weed seeds to the pound, 99,705. 



Sample No. 3169. — Buckhorn, 24,130; Chilean clover dodder, 14,250; sorrel, 

 3.910; wild carrot, 3,910; healall, 3,825; yellow trefoil, 850; bird's-foot trefoil, 425; 

 lamb's-quarters, 340; wild chicory, 340; ox- tongue, 340; green foxtail, 170; mayweed, 

 170; field camomile, 170; hop-clover, 170; mouse-ear chickweed, 85; small crab- 

 grass, 85; low hop-clover, 170; chickweed, 85; kidney vetch, 85; red pimpernel, 85; 

 small-flowered crane's-bill, 85; saltbush, 85; other weed seeds, 595. 



Total weed seeds to the pound, 54,360. 

 Ill— III 



