bank of Assabet to Bridge. The river is open almost its whole length. It is a beautifully smooth mirror with an icy frame. It is well to improve such a time to walk by it. This strip of water of irregular width over the channel between broad fields of ice looks like a polished silver mirror, or like another surface of polished ice, and often is distinguished from the surrounding ice only by its reflections. I have rarely seen any reflections (of weeds, willows, and elms, and the houses of the village) so distinct, the stems so black and distinct, for they contrast not with a green meadow, but clear white ice, to say nothing of the silvery surface of the water. Your eye slides first over a plane surface of smooth ice of one color, to a watery surface of silvery smoothness, like a gem set in ice, and reflecting the weeds, trees, houses, and clouds with singular beauty. The reflections are particularly simple and distinct. These twigs are not referred to and confounded with a broad green meadow from which they spring, as in summer, but instead of that broad green ground absorbing the light, is the abrupt white field of ice.
Dec. 15, 1837. Jack Frost. As further confirmation of the fact that vegetation is a kind of crystallization, I observe that upon the edge of the melting frost on the windows, Jack is
