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Volumes

1. Vol 1 The Machines Zander's hall of cam-and-lever therapy apparatus, the hand-crank and electric medical vibrator, and Battle Creek's shaking chairs and platforms — the objects, and how they were used and sold.
2. Vol 2 What They Actually Did: Real Effects, Cure-All Claims The honest boundary of mechanised therapy — where passive exercise and vibration do real but limited work, where the cure-all marketing became quackery, and why the famous 'hysteria vibrator' story is a contested myth, not a fact.
3. Vol 3 The People and the Institutions Gustav Zander's machine gymnasium, the medical-vibrator men, John Harvey Kellogg's Battle Creek, and Bernarr Macfadden's physical culture — the figures who built mechanised therapy, and the contested myth that grew up around the vibrator.
4. Vol 4 The Contested History and the Reckoning The single most careful chapter in this dive: the famous 'Victorian doctors used vibrators to treat hysteria' story presented as a contested myth — Maines (1998) versus Lieberman & Schatzberg (2018), citing both sides — and then the real reckoning, in which cure-all vibration faded into legitimate physiotherapy while the fraud met the courts and the regulators.
5. Vol 5 Collecting and the Physiotherapy Legacy Where the surviving Zander machines, Pulsocons, and electric vibrators can be seen, how a collector identifies and dates one, why the widely-repeated 'hysteria vibrator' story is a contested myth, and how this apparatus became genuine physiotherapy and gym equipment.