=The symptoms= are very vague. There is indigestion, with a tendency to nausea, and vomiting. Diarrhœa may be present: At a later stage the heart and nervous system are affected. The gait becomes hesitating, the animals show general dulness and spasm of the pharynx; death, when occurring, is by cardiac or respiratory syncope. =Treatment= consists in giving an entire change of food, and administering stimulants and purgatives. AGARICACEÆ (MUSHROOM FAMILY). =Amanita muscaria.=—The well-known fly amanita (fly fungus; deadly amanita) may be found from spring to early winter in pine forests throughout the United States. Cows are supposed to be killed by eating it, and almost every year the daily papers chronicle the death of several human beings who were led to eat the fungus through mistake for some edible species. The fresh cap is frequently rubbed up with milk and used to poison flies. PHALLACEÆ (STINK-HORN FAMILY). * =Clathrus columnatus.=—In an article published in the _Botanical Gazette_ (Vol. XV. p. 45), Dr. Farlow, of Harvard University, gives an account of an investigation of a case of poisoning in hogs which was caused by eating this peculiar fungus. It grows in patches in oak woods and openings, and is quite common throughout the Southern States. POLYPODIACEÆ (FERN FAMILY). =Pteris aquilina.=—In July, 1895, nineteen cattle died in Maryland, which were supposed to have been poisoned by eating the common bracken fern. Very few similar cases are on record, but one European authority cites one in which five horses were killed by eating hay contaminated with this fern, and another states that cases are quite frequent among cattle in England. EQUISETACEÆ (HORSETAIL FAMILY). =Equisetum arvense.=—The field horsetail was reported from Connecticut in 1871 as being poisonous to horses. Cases are very rare, and it is probable that this plant is deleterious only when eaten in considerable quantity, and then perhaps only on account of its physical character. Experiments made in Europe show that a similar species (_E. palustre_) is fatal to horses when fed in considerable quantity with hay. TAXACEÆ (YEW FAMILY). =Taxus minor.=—The common yew, or ground hemlock, is called poison hemlock in some places. The leaves of this shrub are probably poisonous to stock, as are those of the European yew. This species is more accessible to stock than the western yew (_Taxus brevifolia_), which grows only in deep cañons. YEW POISONING (TAXUS BACCATA). The leaves of yew, when eaten in any considerable quantity, are very poisonous. Two ounces to eight ounces, according to the size of the animal, slow the heart’s action, produce weakness, staggering, and apoplectic congestion, which may have a fatal result in less than an hour. The bark is less injurious, and the fruit is scarcely poisonous at all.