| It's only effective if dropped | 34 |
| It's illegal to drop | 24 |
| It's dropped on trips | 25 |
| It's dropped | 16 |
| It was heavily dropped about four decades ago | 45 |
| It was dropped in the 1960s | 27 |
| It was dropped before trips | 27 |
| It may cause you to trip | 24 |
| It causes hallucinations | 24 |
| It can cause one to trip | 24 |
| Illegal thing to drop | 21 |
| Hot Hot Heat "JFK's ___" | 38 |
| Flashback causer | 16 |
| English money initials | 22 |
| Dropped hallucinogen | 20 |
| Dr. Leary's drug | 20 |
| Dr. Leary used it on some trips | 31 |
| Don't drop it, or you might trip | 36 |
| Controversial drug | 18 |
| Certain illegal drug, for short | 31 |
| Cause of some '60s trips | 28 |
| Cause of a trip | 15 |
| Blotter substance | 17 |
| Alternative to shrooms | 22 |
| Agent for a trip? | 17 |
| Agent for a trip taker? | 23 |
| Acid used in some trips | 23 |
| Acid that many dropped | 22 |
| Acid one can ingest | 19 |
| A hallucinogen, for short | 25 |
| 60's turn-on | 16 |
| 1960s drug | 10 |
| '60s trip starter, initially | 32 |
| '60s drug | 13 |
| Your parents might have dropped it | 34 |
| You can trip on it | 18 |
| Woodstock supply | 16 |
| What Timothy Leary dropped | 26 |
| What the "turn on" part refers to in "Tune in, turn on, drop out" | 85 |
| What "Lucy in the Sky With Diamonds" may or may not be about | 70 |
| Trippy letters | 14 |
| Tripping cause | 14 |
| Trippers call it acid | 21 |
| Tripper's buy | 17 |
| Trip-taking letters | 19 |
| Trip-taker's aid, perhaps | 29 |
| Trip-inducing drug | 18 |
| Trip-inducing chemical | 22 |
| Trip vehicle? | 13 |
| Trip tripper, for short | 23 |
| Trip tab | 8 |
| Trip preparation? | 17 |
| Trip preparation | 16 |
| Trip need? | 10 |
| Trip need, perhaps | 18 |
| Trip medium of the '60s | 27 |
| Trip letters | 12 |
| Trip inits. | 11 |
| Timothy Leary's drug choice | 31 |
| Timothy Leary's drug | 24 |
| Timothy Leary drug | 18 |
| The U.S. banned it in 1968 | 26 |
| The U.S. banned it in 1967 | 26 |
| Take it for a trip | 18 |
| Tab for a trip? | 15 |
| Substance of interest to the CIA in the 1950s | 45 |
| Subject of some '50s-'60s experiments | 45 |
| Subject of secret Cold War military experiments | 47 |
| Subject of "Hofmann's Potion" | 43 |
| Subj. in "The Electric Kool-Aid Acid Test" | 52 |
| Start of a trip? | 16 |
| Start of a bad trip? | 20 |
| St. drug of the sixties | 23 |
| Source of some hallucinations | 29 |
| Source of some flashbacks | 25 |
| Source of a Woodstock high | 26 |
| Source of a hippie's high, perhaps | 38 |
| Source of a hippie's high | 29 |
| Something to drop for a trip | 28 |
| Something dropped by one who trips? | 35 |
| Some albums sound better on it | 30 |
| Sixties halucinogen, for short | 30 |
| Sixties halucinogen | 19 |
| Sixties halucenogen, abbr. | 26 |
| Sixties hallucinogen, for short | 31 |
| Sixties hallucinogen, abbr. | 27 |
| Sixties hallucinogen | 20 |
| Sixties drug, for short | 23 |
| Sixties drug, abbr. | 19 |
| Show trip producer? | 19 |
| Sandoz Laboratories drug | 24 |
| Rose partially | 14 |
| Rented: Abbr. | 13 |
| Psychotherapy aid, once | 23 |
| Psychedelic substance | 21 |
| Psychedelic of the 60's | 27 |
| Psychedelic music drug | 22 |
| Psychedelic drug: Abbr. | 23 |
| Psychedelic derived from ergot | 30 |
| Psychedelic Cali rockers ___ and the Search for God | 51 |