TOBACCO POISONING.
Fig. 112.—Spreading nightshade (Solanum triflorum), one-third natural size.
Tobacco poisoning may be produced by baths or lotions containing tobacco juice, which is often used as a parasiticide. The ingestion of tobacco leaves in forage may also produce poisoning. Doses of 1 ounce in the goat and 10 ounces in the ox are toxic.
The symptoms consist in salivation, vomiting, nausea, diarrhœa, cardiac palpitation and dyspnœa.
The lesions are those of gastro-enteritis with cerebral congestion.
Treatment consists in giving tannin, black coffee, etc.
Solanum dulcamara.—The bittersweet, or climbing nightshade, is a European weed, now introduced in the north-eastern quarter of the United States. The leaves are suspected of being poisonous to stock.
* Solanum nigrum.—The black nightshade (common nightshade; garden nightshade) is a common weed in cultivated fields throughout the greater portion of the United States. Cattle seldom eat the plant, but a few cases of poisoning are recorded for calves, sheep, goats, and swine.
* Solanum triflorum.—The spreading nightshade is a native of the Great Plains (United States), and also a common garden weed from Arizona and Texas to British America. Complaints of the poisoning of cattle by this plant have been sent to the Department of Agriculture from Nebraska. Experiments show that the berries are poisonous.