in Thoreau’s Journal:

A fine morning—still & bright with smooth water—and singing of song & tree sparrows & some black-birds….All the earth is bright. The very pines glisten–& the water is a bright blue….

Not only are the evergreens brighter–but the pools–as that upland one behind Lees–the ice as well as snow–about their edges being now completely melted–have a peculiarly warm & bright April look–as if ready to be inhabited by frogs.