192 VETEEINAEY TOXICOLOGY 



Occasionally the grain gets mixed with cereals, and thus 

 enters flour or forage. The starch is small, having the 

 dimension 1 to 2 ^, as compared with wheat, which has 

 15 to 35 ti. 



Fig. 25. — Lychnis Githago (Coen-Cockle). 



Arenaria includes A. serpyllifolia, or the thyme-leaved 

 sandwort, and is common on walls, dry sands, and waste 

 places. 'A very much branched, slender, and slightly 

 downy annual, seldom attaining 6 inches. Leaves very 



