On 2 June, the Floyd played Joe Boyd's UFO after a two-month absence. Though the other band members were friendly, Boyd said Barrett 'just looked at me. I looked right in his eye and there was no twinkle, no glint... you know, nobody home.' Visiting London from France, David Gilmour dropped in on the recording of 'Emily': 'Syd didn't seem to recognise me and he just stared back,' he says. 'He was a different person from the one I'd last seen in October.' Was he on drugs, though? 'I'd done plenty of acid and dope - often with Syd - and that was different from how he had become.'
Touring the provinces in July, like the rest of the band, Barrett resented the beery mob baying for 'Arnold' and 'Emily'. The Floyd even wrote a white-noise number called 'Reaction in G' to express their feelings. But Barrett's inner reaction was harder to fathom. With his echo-machines on full tilt, he might detune his Fender until its strings were flapping, and hit one note all night. He might stand with his arms by his side, the guitar hanging from his neck, staring straight ahead, while the others performed as a three-piece.
Perhaps Barrett was making a statement. Perhaps he was pushing his experimental notions of 'music-of-the-moment' to new boundaries. Whatever else, he was now seriously mentally ill. And almost certainly he suspected it himself.
After a couple of further concert debacles, Jenner and his partner Andrew King were forced to act. Though their debut LP Piper at the Gates of Dawn was released on 4 August, Blackhill cancelled the next three weeks' gigs and arranged a holiday for Barrett and Corner on the Balearic island of Formentera. Hutt and Rick Wright would be chaperones, accompanied by their partners and Hutt's baby son. Waters and his wife would be in Ibiza. When Melody Maker learnt of this, their front-page splash read: 'Pink Floyd Flake Out'.
2 November 1967, US mini-tour. Pink Floyd were not prepared for the American way. They had expected the San Francisco scene to be similar to Britain's. Instead, they found themselves in humungous venues like the Winterland, supporting such blues bands as Big Brother and the Holding Company (led by Janis Joplin). The three nights they played with Joplin, they borrowed her lighting because their own seemed too weedy. The crowd weren't into feedback or English whimsy - acid-inspired or not. Barrett was off the map, and when he did play, it was to a different tune.
At the beginning of the week his hair had been badly permed at Vidal Sassoon, and he was distraught. The greased-up 'punk' style with which he'd been experimenting would be better. Waters remembers that in the dressing-room at the Cheetah Club in Santa Monica, Barrett suddenly called for a tin of Brylcreem and tipped the whole lot on his head. As the gunk melted, it slipped down his face until Barrett resembled 'a gutted candle'. Producing a bottle of Mandrax, he crushed them into the mess before taking the stage. David Gilmour says he 'still can't believe that Syd would waste good Mandies'. But a lighting man called John Marsh, who was also there, confirms the story. Girls in the front row, seeing his lips and nostrils bubbling with Brylcreem, screamed. He looked like he was decomposing onstage. Faced with this farce, some of the band and crew abandoned themselves to drink, drugs, groupies and the sights. When they arrived in Los Angeles, Barrett had forgotten his guitar, which caused much cost and fuss. 'It's great to be in Las Vegas,' he said to a record company man in Hollywood. He fell into a swimming-pool and left his wet clothes behind.
The Floyd survived the tour by the skin of their teeth. On TV's Pat Boone Show, where they did 'Apples and Oranges', Barrett was happy to mime in rehearsals - but live he ignored the call to 'Action' four or five times, leaving Waters to fill in. Asked what he liked in the after-show chat, Barrett replied... after a dreadful pause... 'America!', which made the audience whoop. On American Bandstand and the Perry Como Show, he did not move his lips, to speak or mime.
Finishing their commitments on the West Coast, the band began thinking of how to replace or augment him. The next day, they were in Holland, handing Barrett notes in the hope that he would talk to them. The day after, they were bus-bound on a British package tour with Hendrix, the Move, Amen Corner, the Nice and others, playing two 17-minute sets a night for three weeks, with three days off in middle.Though he had worked harder, the schedule was too much for Barrett. Onstage, he was unable to function. Sometimes he failed to show up and the Nice's Dave O'List stood in for him. Once, Jenner had to stop him escaping by train.
Barrett did play occasional blinders through out the autumn of 1967, but these instances were as unpredictable as spring showers, and the band's hopes that he might 'return' dimmed. The Floyd stumbled through to Christmas, while the three other band members hatched a plan: they would ask David Gilmour to join the group to cover lead guitar and vocals while their sick colleague could do what he wanted, so long as he stood onstage.
Barrett couldn't care less, and Gilmour, broke, bandless and driving a van for a living - was known to be not only a terrific guitarist but also a wonderful mimic of musical parts. Drummer Nick Mason had already sounded him out when they ran into each other at a gig in Soho. On 3 January 1968, Gilmour accepted a try-out. The band had a week booked in a north London rehearsal hall before going back on the road.
Four gigs followed in the next fortnight, with Barrett contributing little. He looks happy enough in a cine-clip from the time, joining in with the lads for a tap-dance in a dressing-room. 'But in reality,' says Gilmour, 'he was rather pathetic.' On the day of the fifth gig the others were driving south from a business meeting in central London. As they drove, one of them - no one remembers who - asked, 'Shall we pick up Syd?' '**** it,' said the others. 'Let's not bother.' Barrett, who probably didn't notice that night, would never work again with the band that he had crafted in his image. And they never quite put him out of their minds.
Not that their minds were made up. Though the Floyd would go on to huge fame and fortune, at the time they believed they probably had a few months left of milking psychedelia before ignominious disbandment. Barrett, as Waters says, was the 'goose that had laid the golden egg'. Now their frontman had become such a liability on tour, they would rather appear without their main attraction than risk his involvement.
However, Barrett still had the band's schedule. Waters remembers him turning up with his guitar at 'an Imperial College gig, I think, and he had to be very firmly told that he wasn't coming on stage with us'. At the Middle Earth, wearing all his Chelsea threads, he positioned himself in front of the low stage and stared at Gilmour throughout his performance. Now he had to watch his old college friend playing his licks. Undoubtedly, he felt hurt by this treatment.
Though the money from Piper came rolling in, Barrett's work went completely to pot. Jenner took him into the Abbey Road studios several times between May and July 1968, bringing various musicians and musical friends to help out, but achieved next to nothing.
Barrett was all over the place - forgetting to bring his guitar to sessions, breaking equipment to EMI's displeasure. Sometimes he couldn't even hold his plectrum. He was in a state, and had little new material. Jenner had the experience neither as a person not as a producer to coax anything out of him. By August, he and King were having less and less to do with Barrett - which could equally be said of the other lodgers in Egerton Court.
According to flatmate Po, 'Syd could still be very funny and lucid, but he could also be uncommunicative. Staring. Heavy, you know?'
In the spring of 1968, Roger Walters had talked to the hip psychiatrist RD Laing. He had even dri ven Barrett to an appointment: 'Syd wouldn't get out. What can you do?' In the intervening months, however, Barrett became less hostile to the idea of treatment. So Gale placed a call to Laing and Po booked a cab. But with the taxi-meter ticking outside, Barrett refused to leave the flat.
By the autumn of 68, he was homeless. Periodically he returned to Cambridge, where his mother Win fretted, urged him to see a doctor, and blindly hoped for the best. In London, he crashed on friends' floors - and began the midnight ramblings which would continue for two years.
By the mid 70s, the Syd Barrett Appreciation Society had folded, due to 'lack of Syd'. But he wasn't quite invisible. In 1977, ex-girlfriend Gala Pinion was in a supermarket on the Fulham Road. 'Where are you going, then?' he said. 'I'm going to buy you a drink.' They went for a drink, and he invited her back to his flat. Once there, 'He dropped his trousers and pulled out his cheque book,' says Pinion. 'How much do you want?' he asked. 'Come on, get your knickers down.'
Gala made her excuses and left, never to see him again. However, even as an invisible presence, he loomed large. The previous year, punk rock had appeared and the King's Road had become heartland. Without success, the Sex Pistols, their manager Malcolm McLaren and their art director Jamie Reid tried to contact Barrett, to ask him to produce their first album. The Damned hoped he would produce their second, realised it was impossible and settled for the Floyd's Nick Mason ('Who didn't have a clue', according to the band's bassist Captain Sensible).
Barrett continued to do as little and spend as much as ever. Bankrupt, he left London for Win's new Cambridge home in 1981.