Pliny perhaps did not intend to subscribe fully to such statements, although he cannot be said to call many of them into question. He did complain that some writers had asserted incredible powers of herbs, such as to restore dragons or men to life or withdraw wedges from trees,[291] yet he seems on the whole in sympathy with the opinion of the majority that there is practically nothing which the force of herbs cannot accomplish. Herophilus, illustrious in medicine, had said that certain herbs were beneficial if merely trod upon, and Pliny himself says the same of more than one plant. He tells us further that binding the wild fig tree about their necks makes the fiercest bulls stand immobile;[292] that another plant subjects fractious beasts of burden to the yoke;[293] while cows who eat _buprestis_ burst asunder.[294] Another herb _contacto genitali_ kills any female animal.[295] Betony is considered an amulet for houses,[296] and fishermen in Pliny’s neighborhood mix a plant with chalk and scatter it on the waves.[297] “The fish dart towards it with marvelous desire and straightway float lifeless on the surface.” Dogs will not bark at persons carrying _peristereos_.[298] The “impious plant” prevents any human being who tastes it from having quinsy, while swine are sure to have that disease if they do not eat it. Some place it in birds’ nests to prevent the voracious nestlings from strangling. Bitter almonds provide another amusing combination of effects. Eating five of them permits one to drink without experiencing intoxication, but if foxes eat them they will die unless they find water near by to drink.[299] There are some herbs which have a medicinal effect, if one merely looks at them.[300] In two cases the masculine or feminine variety of a herb is used to secure the birth of a child of the desired sex.[301] [Sidenote: Plucking herbs.]