Bearing also upon the adulterations, impurities and defectives found in alfalfa seed sold in the markets, extracts from reports of tests made at the Wooster, Ohio station (Bul. No. 142) are exceedingly interesting. In fifteen samples bought, each of one dollar’s worth, the quantity of pure germinable seed was found to range from 5.1 to 9.3 pounds; the number of noxious seeds found in a dollar’s worth of that bought as alfalfa seed ranged from 360 to 185,940. Seven of the fifteen one-dollar samples each carried more than 23,000 noxious seeds. Seed bought at $7.80 per bushel showed as low as 61.2 per cent that was germinable, of which the _actual_ cost was $12.74 per bushel. None of the fifteen samples had less than 77 per cent of germinable seed. One pound sample contained 21,728 noxious seeds, of which 18,144 were lamb’s-quarter or pigweeds; the same pound also had 3126 seeds of dodder. Another pound carried 6420 seeds of crab grass, and one had 3325 seeds of foxtail. The station authorities recommend that no alfalfa seed be sown until carefully screened through a screen fine enough to remove dodder seeds. Wire sieves or screens with twenty meshes to the inch are found to serve the purpose. ADULTERANTS DESCRIBED AND ILLUSTRATED As a further and more thorough discussion of the frequent adulterants, Prof. H. F. Roberts, botanist of the Kansas experiment station, has kindly prepared, with illustrations, for this volume the quoted statements which follow here: “The immense and steadily increasing value of alfalfa as a forage crop in the United States, and the high price of the seed, make the securing of sound, pure seed a matter of supreme importance to farmers, and render it equally important for them to be able to recognize, by sight, the presence in alfalfa seed of the adulterants and seeds of certain weeds most commonly known to occur. There is conclusive evidence that an amount of adulteration and substitution is actually practiced with alfalfa seed. It is usually charged that this is done abroad, especially, as is alleged, in Germany.