To act as judgment says is proper;
To port, or starboard, back or stop her.
But when upon my port is seen
A steamer’s starboard light of green,
There’s naught for me to do but see,
That green to port, keeps clear of me.
Both in safety and in doubt,
I always keep a bright lookout;
In danger, with no room to turn,
I ease her, stop her, go a-stern.”