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Free UK Postage on orders over £30 - PLEAE NOTE, DUE TOCOVID-19, THERE MAY BE SOME DELAYS TO OVERSEAS PARCELS
HYD
£10.00
A proving on this most fundamental of all substances.
This book catalogues the proving of hydrogen and contains sections describing the substance, its pharmaceutical preparation, a list of provers and potencies, a chronology of symptoms, and proving and repertory generalities.
