=Furze= or =Gorse= (_Ulex europæus_ L.). In view of the fact that Gerrard isolated from the seeds of Gorse the alkaloid _Ulexine_, which is identical with _Cytisine_ (p. 27) and that the alkaloid is also contained in less quantity in the bark of young shoots, this plant has been suspected of possessing toxic properties. Experiments (179)[7] with the alkaloid definitely showed it to be a nerve and muscle poison, 3 milligrammes having killed a chloroformed cat with convulsions in three minutes, though the animal could be kept alive as long as artificial respiration was kept up. As, however, Gorse has long been used very widely and in considerable quantities as a fodder the percentage content of the alkaloid must in general be exceedingly small, and no harmful effects need be feared from the consumption of the cut and bruised plant. Possibly the seeds might prove injurious if eaten in quantity. Footnote 7: Reference to Bibliography. =Melilot= (_Melilotus_ sp.) may at times cause injury. Ewart (82) writes: “All the species contain Cumarin, a volatile odoriferous principle, which in excess produces a disinclination to locomotion, paralysis and ultimately fatal symptoms. No harm is to be apprehended if the amount present does not exceed 10 per cent. of the herbage.” =Silver Weed= (_Potentilla Anserina_ L.). This well-known and elegant little weed is scarcely likely to be eaten to any extent by farm stock, though it may possibly be taken occasionally on roadsides. It has not been proved to be poisonous, but Pott states that it has a strongly constipating effect (213). =Tormentil= (_Potentilla Tormentilla_ L.). In relation to supposed bracken poisoning (see p. 87) in regard to which experiments were conducted by the Board of Agriculture and Fisheries, Tormentil occurred in several instances with the bracken in localities where this plant was reported to cause poisoning. Two feeding experiments in which the weed was fed to heifers gave negative results. In a further case, however, 4 or 5 lb. were collected from a field where sick animals were grazing, and fed to a heifer; it appeared to be the cause of rise of temperature (to 106° F.), diarrhœa, and the passing of a considerable quantity of blood in the fæces for three days, after which the animal improved. It was, however, slaughtered, and lesions were found similar to those found in animals dying in the field from so-called bracken poisoning. Though the plant was suspected, results generally were not held to prove that it was the cause of poisoning (25). According to Van Rijn the root of Tormentil contains a considerable quantity of _Chinovic acid_ (C_{32}H_{48}O_{6}?). =Wall-Pepper= (_Sedum acre_ L.) is regarded as emetic and purgative, but to lose the harmful properties on drying. =Sundews= (_Drosera_ sp.) are reputed to be poisonous to sheep, but no evidence has been found.