Ray mentions that a gardener employed in clipping a Yew tree at Pisa, could not proceed with his work for more than half-an-hour at a time without being seized with a violent pain in the head. Nevertheless, deer, sheep, and goats can eat the foliage with impunity.
The fresh leaves were administered to three children near
Manchester for worms. Yawning and listlessness came on, and the
eldest vomited a little, but neither of them complained of any pain.
They all died within a few hours of each other.
Because being then green, on the Sunday next before Easter, the branches of the Yew tree have been used as a substitute for the Palms which symbolise the entry of Jesus into Jerusalem.
The symptoms induced by provings of the leaves and juice in toxic quantities, have been sick headache, with giddiness, feeble, faltering pulse, coldness of the extremities, diarrhoea, and general prostration. So that for this combination of symptoms, as in severe biliousness, or as in the auditory vertigo of Menière's disease, small doses of the diluted tincture are found to give prompt and effectual relief. The leaves contain a volatile oil, tannin, and a bitter principle "taxina," which is also furnished by the seeds. An extract of Yew has been pronounced a useful narcotic by more than one physician of repute: and in some parts of Germany a decoction of the wood is a well-known remedy against hydrophobia.
A jelly prepared from the berries has been given for chronic bronchitis, and the leaves have been used for epilepsy; likewise they have been taken by ignorant persons to induce abortion, but with serious injury to the experimenter. In some rural districts the berries [623] are known as "Snots"; whilst the wood and roots are "Wire thorn."
By an old statute of Edward the First, trees were required to be placed in churchyards to defend the church from high winds, the clergy being allowed to cut them down for repairing the chancel when necessary. Perhaps, partly for this reason, the Yew was commonly planted by the side of a newly-built church. That its wood was certainly employed for making bows, we learn from Shakespeare:—
"Thy very beadsmen learn to bend their bows
Of double-fatal Yew against thy state."
It was "double-fatal," because the leaves and fruit seeds are poisonous, and the bows made from its branches, as well as arrows armed with its deadly juice, were instruments of death.
Against the maladies which have been specified as indicating the tincture of Yew for their cure, from five to ten drops of the third decimal tincture should be given, with a spoonful of water, every two, three, or four hours, whilst required. In Switzerland the Yew is known as William's tree, in memory of Tell. Formerly the name was spelt "Eugh," "Yeugh," and "Ewgh."
Spenser says:—