Complex sentence: Another story often told, this one almost certainly apocryphal, is of Murdoch travelling from "mine to mine in a steam chaise lit by gas", given the state of the roads at that time this can be discounted.
Split into simpler sentences: Another story often told, this one almost certainly apocryphal, is of Murdoch travelling from "mine to mine in a steam chaise lit by gas". Given the state of the roads at that time this can be discounted.