"Our Hoste saw well that the brighte sun Th' arc of his artificial day had run The fourthe part, and half an houre more; And, though he were not deep expert in lore, He wist it was the eight-and-twenty day Of April, that is messenger to May; And saw well that the shadow of every tree Was in its length of the same quantity That was the body erect that caused it; And therefore by the shadow he took his wit."