I had noticed that the narrow, tube-like channel of the obliterated ditch grew less defined as I dug in one direction, so I paced off a rod in advance and made a cross-section. Here it could not be traced, but a half-dozen very small openings, circular in outline, could be seen, and through some of these the water slowly trickled. I found a single mole-cricket, and attribute to it and others of its kind these little tunnels. Certainly more persistent burrowers do not exist, and I have known them to cause mischief to a mill-dam which was attributed to musk-rats. “They are,” says Prof. Riley, “the true moles of the insect world, and make tortuous galleries, destroying everything that comes in their way, cutting through roots, and eating the fine underground twigs, as well as the worms and grubs, which they meet with during their burrowings.” A volume would not suffice to enumerate the invertebrate or insect-like life that lived in this dark passage-way beneath the sod; nor do we wonder at finding such low forms groping in utter darkness; but why higher animals that are found, and far more frequently, in the open air and sunlit waters should delight to crowd these same gloomy quarters, is a problem not so easily solved. We are left to conjecture, and invariably do so, and are often overwhelmed when an army of objections confront our theories. Notwithstanding this, there is a pleasure in reopening an obliterated ditch, in letting in the light upon a hidden highway, for by so doing we also let in light upon ourselves, seeing with clearer vision the wonderful world about us. Weathercocks.