Cows. Fed erratically, breathed hard, lay down after feeding. Pulse almost imperceptible, contracted pupil, and excessive urination. Pigs. Languid and sleepy: refused to eat or drink, attempting to vomit and repeatedly passing small quantities of fæces. Urination was scanty and strained. In a case of poisoning among horses to which Müller refers the animals had an exhausted appearance, there was loss of appetite, increasing thirst, often also colic, and later diarrhœa, urination often in great quantity, and staggering. Some of the animals died after a few days in convulsions. REFERENCES. 4, 16, 73, 76, 79, 81, 161, 170, 187, 190, 203, 204, 205, 213, 229, 252, 257. =Lousewort= (_Pedicularis_, sp.). Two species of lousewort are involved, _P. palustris_ L. and _P. sylvatica_ L., and though both are regarded as poisonous the extent to which they are so is not well known. They have an unpleasant smell and sharp taste, and are in general refused by all classes of stock. _P. sylvatica_ may be eaten when young (Cornevin). Lindley says that both plants are acrid, but are eaten by goats. _P. palustris_ is regarded by Pott as an acutely poisonous plant, especially for sheep. A decoction of these plants was formerly used against lice, and hence the trivial name. _Toxic Principle._ Very little appears to be known about the poisonous principle, but, like _Rhinanthus_ and _Melampyrum_, they have been found to contain the glucoside _Rhinanthin_ (see p. 96). _Symptoms._ The plants are held to be emetic and purgative; to cause inflammation of the digestive tract, and to cause anæmia in cattle. Brugmann stated (_vide_ Cornevin) that if, pressed by hunger, animals eat _P. palustris_, the first consequence is hæmaturia. Müller also notes hæmaturia. REFERENCES. 73, 76, 81, 190, 203, 213. POLYGONACEÆ. =Docks= (_Rumex_ sp.). In general it is probable that but little harm is done by species of _Rumex_, but owing to the fact that Common Sorrel (_R. Acetosa_ L.) and Sheep’s Sorrel (_R. Acetosella_ L.) contain acid oxalates they may on occasion prove injurious. Instances have been recorded in which children have suffered from eating the leaves of the former species in considerable quantity, and both species have been accused by veterinary surgeons of poisoning horses and sheep, some sheep even dying. Pammel states that the Curled Dock (_R. crispus_ L.) induces nausea, watery brown fæces, copious urination, dry spasmodic cough, and perspiration; but no record of the death of animals has been found.