Bones, electrochemical growth

A third approach to experimentation with the electrodic hypothesis in biology mi t be by means of magnetic fields. As the major difficulty is the attachment of electronic conducting wires to the biological systems, it may be possible to replace this by induction of potential differences across the membranes as is done in electrochemical bone growth. ... 

It is well known that the zone of tissue injury is the source of DC potentials. It has often been postulated that bone growth is enhanced if a DC current is supplied to each side of the fracture. Nordenstrpm used DC in an electrochemical treatment of tumors. 

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