Cleopatra, warned by dreadful presentiments of what would probably at last be her fate, amused herself in studying the nature of poisons--not theoretically, but practically--making experiments with them on wretched prisoners and captives whom she compelled to take them, in order that she and Antony might see the effects which they produced. She made a collection of all the poisons which she could procure, and administered portions of them all, that she might see which were sudden and which were slow in their effects, and also learn which produced the greatest distress and suffering, and which, on the other hand, only benumbed and stupefied the faculties, and thus extinguished life with the least infliction of pain. These experiments were not confined to such vegetable and mineral poisons as could be mingled with the food or administered in a potion. Cleopatra took an equal interest in the effects of the bite of venomous serpents and reptiles. She procured specimens of all these animals, and tried them upon her prisoners, causing the men to be stung and bitten by them, and then watching the effects. These investigations were made, not directly with a view to any practical use which she was to make of the knowledge thus acquired, but rather as an agreeable occupation, to divert her mind, and to amuse Antony and her guests. The variety in the forms and expressions which the agony of her poisoned victims assumed--their writhings, their cries, their convulsions, and the distortions of their features when struggling with death, furnished exactly the kind and degree of excitement which she needed to occupy and amuse her mind. Antony was not entirely at ease, however, during the progress of these terrible experiments. His foolish and childish fondness for Cleopatra was mingled with jealousy, suspicion, and distrust; and he was so afraid that Cleopatra might secretly poison him, that he would never take any food or wine without requiring that she should taste it before him. At length, one day, Cleopatra caused the petals of some flowers to be poisoned, and then had the flowers woven into the chaplet which Antony was to wear at supper. In the midst of the feast, she pulled off the leaves of the flowers from her own chaplet and put them playfully into her wine, and then proposed that Antony should do the same with his chaplet, and that they should then drink the wine, tinctured, as it would be, with the color and the perfume of the flowers. Antony entered very readily into this proposal, and when he was about to drink the wine, she arrested his hand, and told him that it was poisoned. "You see now," said she, "how vain it is for you to watch against me. If it were possible for me to live without you, how easy it would be for me to devise ways and means to kill you." Then, to prove that her words were true, she ordered one of the servants to drink Antony's wine. He did so, and died before their sight in dreadful agony.