“Two instances have recently come before the Board in which the death of cattle has been attributed to the poisonous effects of _Cupressus macrocarpa_ and _C. nootkatensis_. In one case four bullocks died, and on the internal organs being forwarded by the owner to the Royal Veterinary College, Professor McFadyean reported that from the inflamed condition of the fourth stomach and from the description of the symptoms he had little doubt that the cause of death was irritant poison. Some pieces of _Cupressus macrocarpa_ were found in their stomachs, and in default of any other explanation it was suggested that this plant might have some poisonous properties. “In another case three heifers are stated to have suffered from irritant poison; one of them died, but the other two recovered on removal to another field. The veterinary surgeon in this case also attributed the death to a Cupressus (_C. nootkatensis_) growing by the side of the field. “The Board have no information as to the poisonous properties of these two species, nor can any record be found of any similar case which would tend to confirm the suspicion that they are poisonous to cattle.” REFERENCES. 4, 16, 76, 144, 213, 252. =Yew= (_Taxus baccata_ L.). As stated above, the Yew is the only British conifer that is likely to prove seriously poisonous to live stock. It has unfortunately caused the death of many horses and cattle, while asses, mules, deer, pigs, rabbits, and pheasants have also been poisoned. Many cases of fatal human poisoning have also occurred. For example, the poisoning of a horse, and of cattle, horses, and deer were mentioned respectively in 1885 and 1893 (_Jour. Roy. Agric. Soc._). “Through eating the poisonous leaves of a Yew tree, four cross-bred cattle were found dead in a shrubbery at Elmswell, near Driffield” (_Daily Mail_, 13th Dec., 1913). Many cases of poisoning and death of animals due to eating the foliage direct from the trees have been recorded in the veterinary journals—e.g. the death of 15 cattle in _The Veterinary News_, 7th Dec., 1912. Tegetmeier recorded the death of pheasants due to Yew leaves and seeds (_The Field_, 11th Nov., 1893). On the other hand many cases have been recorded in which fatal results have not followed the ingestion of the leaves, and it appears that the lower branches of Yew trees in parks are constantly cropped by cattle without ill effects. (_Trans. Chem. Soc._, 1902; _Jour. Bd. Agric._, 1903).