Which is Which?

A week at the beach was a welcome break, even if the early June weather was a bit chilly, but it all left me with one burning, unanswered question- what's the difference between flotsam and jetsam, and can you have one without the other?

Oh. Well, That's innocent Enough.

Here's a rather frightening series of illustrations from a 19th century French inventor's magazine I just bought-

Now, I'm not sure what this looks like to you,
but I know what it looks like to me-

ok, yeah, this is what I thought the next step would be...

please please please please don't show what comes next.

oops. Oh.

It's just a roll of paper advertisements
to be read by passersby.

I'm not sure whether this makes me happy or sad...