Tiring of the fish at last, and having long since wearied of reopening the ditch, I turned my attention to the other creatures that I had unearthed. Among them were four species of turtles, each represented by several individuals. One of these was the Muhlenberg tortoise, the rarest of American chelonians. Probably just here, over a few hundred acres of the Delaware meadows, there are more of them than in the whole world besides. The fact of their great rarity makes them the more interesting to a naturalist; but to-day they proved exceedingly stupid, far more so than the others, which in a mild way resented my interference, and pranced over the dead grass quite energetically, reaching the nearest open ditch in good time, and to my surprise they all seemed governed by a sense of direction. They went but little if any out of their way. Not so with the “Muhlenbergs”; they seemed dazed for a long time, and finally, after much looking about, they started, the four together, in the wrong direction, and would have had a weary journey to reach open water. Again and again I faced them about, but they would not go as I wished. Such obstinate turtles I had never seen before, and I almost felt convinced that they were impelled by some common impression very different from that which actuated the others. As is often the case, I was all at sea in my efforts to interpret their purposes. Letting them alone, they waddled through the grass for a few yards only, when they reached little pools that met all their needs.