 An account of the journeys of Philip von <unk> to Siberia and his descriptions of the use of the <unk> there was published in English in 1736 . The drinking of urine of those who had consumed the mushroom was commented on by Anglo @-@ Irish writer Oliver Goldsmith in his widely read <unk> novel , Citizen of the World . The mushroom had been identified as the fly agaric by this time . Other authors recorded the distortions of the size of perceived objects while intoxicated by the fungus , including naturalist <unk> <unk> Cooke in his books The Seven Sisters of Sleep and A Plain and Easy <unk> of British Fungi . This observation is thought to have formed the basis of the effects of eating the mushroom in the 1865 popular story Alice 's Adventures in Wonderland . A hallucinogenic " scarlet toadstool " from <unk> is featured as a plot element in Charles Kingsley 's 1866 novel <unk> the Wake based on the medieval figure of the same name . Thomas Pynchon 's 1973 novel Gravity 's Rainbow describes the fungus as a " relative of the poisonous Destroying Angel " and presents a detailed description of a character preparing a <unk> <unk> mixture from harvested Amanita muscaria . Fly agaric <unk> is also explored in the 2003 novel <unk> by Alan Garner . 
