“ Since excessive loss of water is one of the greatest dangers to which plants are subject, plants growing in dry regions show a great variety of adaptations to reduce the rate of transpiration and to conserve the moisture which reaches them. ”

“ If all this water could be caught and condensed on the same area it would reach in the first case a depth of nearly 118 millimeters (45⁄8 inches) , and in the second 228 millimeters (9 inches) . A beech tree having 200,000 leaves was estimated to lose between 300 and 400 liters (about 2 barrels) on a hot day. ”