BIRMINGHAM, England — Half a century after Timothy Leary urged the world to “Turn on, tune in, drop out,” there’s a surge of interest in lysergic acid diethylamide, or LSD. The psychedelic drug was ...

The first time that I took LSD, I accepted three and a half tabs on my tongue from a man dressed up in a monkey suit. Despite the hot summer weather, I raided the winter wardrobe of the house I was ...

In November 1956, three people gathered in a converted Connecticut barn to take LSD, a powerful psychedelic drug that was legal at the time. The children had just been put to bed upstairs. In the ...