What is "side-wheeler"

Usage examples of "side-wheeler".

That's the worst of that kind of imprisonment - not knowing, and losing count of the days, and wondering whether you've been there a month to a year, and whether there is really a world outside at all, and doubting if you ever did more than dream that you were once a boy playing in the fields at Rugby, or a man who'd walked in the Park, or ridden by Albert Gate, saluting the ladies, or played billiards, or followed hounds, or gone up the Mississippi in a side-wheeler, or watched the moon rise over Kuching River, or - you can wonder ii any of it ever existed, or if these greasy .

It was a New Orleans packet boat, Marsh saw as they got near, a medium-sized side-wheeler named the H.

Hadn't he invented the first screw propeller, that was now replacing the side-wheelers for propulsion?