For the bicycle that Jack made.
* * * * *
This the gas oxygen—that you cannot see
Which proportions with iron in atoms three,
To make the chemical of formulæ O₃ Fe₂.
That combines in atoms of twenty-eight times two,
To form the ore, gathered out of the pit,
Which was melted in a furnace, blazingly lit,
That made the iron “carbonised” and clean,
Which was “blown” in the “converter” and “puddled” to steel,