Testing Farm Seeds. 



34 



chess, or cheat. (See fig. 11.) The latter has even passed in the trade as 

 Hungarian brome seed. 



Redtop seed appears in the market in three grades, "recleaned" (or 

 "solid"), ''unhulled" and '^chaff" redtop. The latter is very mislead- 

 ing, since it sometimes contains practically no good seed. The recleaned 

 grade sometimes contains considerable timothy, which is inexcusable 

 unless sold as mixed redtop and timothy. 



Fig. 8. — Mixture of weed seeds commonly found in low-grade alsike clover seed : 

 a, Alsike clover; b, white clover; c. red clover; d, yellow trefoil; e, Canada 

 thistle; f, dock; g, sorrel; h, buckhorn ; i, rat-tail plantain; k, lamb's-quarters ; 

 1, shepherd's-purse ; m. mayweed; n, scentless camomile; o, white campion; p, 

 nig-ht-flowering catch-fly; q, oxeye daisy; r, small-fruited false flax; s, cinque- 

 foil; t, two kinds of peppergrass ; u, catnip; v, timothy; x, chickweed ; y, Canada 

 bluegrass ; z, clover dodder; 1, mouse-ear chickweed; 2, knot-grass; 3, tumbling 

 amaranth; 4, rough amaranth; 5, heal all; 6, lady's-thumb. (Enlarged.) 



Rape, Vetch and Flax. — Winter rape seed is liable to contain seed of 

 the summer rape (bird rape), an annual variety of rape not adapted to 

 the forage pui-poses of the winter rape. Seed of either winter rape or 

 summer rape may contain the seed of various wild mustards, especially 

 that of English mustard, or wild charlock. (See fig. 17, t.) 



Winter (or hairy) vetch seed often contains seed of various varietie 

 of spring vetch, from which it should be free. 



Considerable flax seed is imported from Russia mixed with man 

 impurities, including seed of the flax dodder, a kind of dodder particu- 

 larly destructive to flax. (See fig. 12.) Seed from certain regions of 

 production in this country is free from this dodder, false flax seed and 

 other impurities. 



APPRECIATION OP GOOD SEED NECESSARY. 



These and other conditions of the seed trade operating against the 

 use of the best seed have long prevailed in this countiy. They are likely 



