"Diagram to show the path of the water as it rises to, and escapes from, the leaves." -Stevens, 1916

Leaf Water Flow

"Diagram to show the path of the water as it rises to, and escapes from, the leaves." -Stevens, 1916

"Cross section of yellow poplar wood. E, early; L, late growth; m, medullary ray." -Stevens, 1916

Yellow Poplar Wood

"Cross section of yellow poplar wood. E, early; L, late growth; m, medullary ray." -Stevens, 1916