frozen quite hard ...Thoreau's Journal: 2-Apr-1857
A great change in the weather. I set out apple trees yesterday, but in the night it was very cold, with snow, which is now several inches deep. On the sidewalk in Cambridge I saw a toad, which apparently hopped out from under a fence last evening, frozen quite hard in a sitting posture. Carried it into Boston in my pocket, but could not thaw it into life.