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Electricity was often used in addition to thermal treatments, as it was thought to increase blood flow to limbs and ease joint stiffness. The exact purpose of the alarming treatment depicted in this photograph is unclear, but it appears to involve an electric current.
Te whakamahi i tēnei tūemi
Reference: PA1-f-051-28-3
Permission of the Alexander Turnbull Library, National Library of New Zealand, Te Puna Mātauranga o Aotearoa, must be obtained before any re-use of this image.