Then I came up for air and went down and gave a good tug at it.
I guess it was just kind of caught in the mud and weeds for after I pulled some of these away a lot of bubbles came up, and then I got hold of one end of the thing and it stuck up slantingways out of the water like an alligator's mouth.

Oh, gee, it was all slimy and had moss growing to it and it was black and hard.

I was crazy to find out what it was and I swam around the end of it, bobbing it up and down.
Then I sat on it and rocked it and it joggled.

When I straddled it, it went down with me and when I jerked it, it seemed to get loose a little.

The end that was sticking up wasn't very big around, only it was terribly slippery.