* =Agrostemma githago.=—The common corn cockle (cockle; mullein pink) is a weed common to both the United States and Europe. Poultry and household animals are occasionally poisoned by eating the seeds or the bread made from wheat contaminated with the seeds. MAGNOLIACEÆ (MAGNOLIA FAMILY). =Illicium floridanum.=—The leaves of this species of anisetree are supposed to be poisonous to stock. RANUNCULACEÆ (CROWFOOT FAMILY). * =Aconitum napellus.=—Aconite (monkshood; wolfsbane) is very commonly cultivated in gardens, and is therefore capable of doing great damage to stock. Horses and cattle have frequently been poisoned by eating the leaves and flowering tops. * =Aconitum columbianum.=—The Western aconite, or monkshood, is native in the north-western portion of America, where it sometimes poisons sheep. =Anemone quinquefolia.=—The common wind flower, which grows throughout most of the United States, is extremely acrid and poisonous. Cattle seldom touch it. The plant loses most of its poison in drying. [Illustration: $1] * =Delphinium tricorne.=—The dwarf larkspur, or stagger weed, of the north-eastern quarter of the United States has been especially reported from Ohio as fatal to cattle in April, when the fresh leaves appear. * =Delphinium consolida.=—The seeds of the commonly introduced field larkspur are well known to be poisonous; the leaves are known in Europe to be fatal to cattle. * =Delphinium menziesii.=—The purple larkspur of the north-western quarter of the United States is very common throughout Montana. In one case of poisoning reported by Dr. E. V. Wilcox, of the Montana Experiment Station, over 600 sheep were affected, 250 of which were claimed to have been killed by the weed. An experiment made by Dr. S. B. Nelson, Professor of Veterinary Sciences in the Washington State Agricultural College, shows that it is possible to feed as much as 24¾ lbs. of the fresh leaves to a sheep within a period of five days without any apparent ill effect taking place. An experiment made by Dr. Wilcox shows that the extract from less than an ounce of the dried leaves killed a yearling lamb in two hours, the dose having been given by way of the mouth. [Illustration: $1] [Illustration: $1] LARKSPUR POISONING IN SHEEP.[3] Footnote 3: The following account is summarised from a bulletin of the Montana Experiment Station by Dr. Wilcox.