last, when it is two or three rods off, and approaching them by diving, they all rush to the shore and come out upon it in their fear; but the dipper shows itself close to the shore, and when they enter the water again joins them within two feet, still diving from time to time, and threatening to come up in their midst. They return up stream more or less alarmed, and pursued in this wise by the dipper, who does not know what to make of their fears. It is thus toled along to within twenty feet of where I sit, and I can watch it at my leisure. It has a dark bill, and considerable white on the sides of the head or neck with black between, no tufts, and no observable white on back or tail. When at last disturbed by me, it suddenly sinks low (all its body) in the water without diving. Thus it can float at various heights. So, on the 30th, I saw one suddenly dash along the surface from the meadow ten rods before me to the middle of the river, and then dive, and though I watched fifteen minutes and examined the tufts of grass, I could see no more of it.
Sept. 28, 1840. The world thinks it knows only what it comes in contact with, and whose repelling points give it a configuration to the senses; a hard crust aids its distinct knowledge. But what we truly know has no points of repulsion, and consequently no objective form, being
