For those interested in the rabbit hole, you could do worse than start with the work of D.E.Cameron. https://en.wikipedia.org/wiki/Donald_Ewen_Cameron https://e

For those interested in the rabbit hole, you could do worse than start with the work of D.E.Cameron. https://en.wikipedia.org/wiki/Donald_Ewen_Cameron https://en.wikipedia.org/wiki/Donald_Ewen_Cameron