"There is the incomparable beauty and variety of the foliage, the vivid color, the richness and exuberance everywhere displayed, which make the richest woodland scenery in northern Europe a sterile desert in comparison. But it is especially the enjoyment of life manifested by individual existences which compensates for the destruction and pain caused by the inevitable competition. Although this competition is nowhere more active, and the dangers to which each individual is exposed nowhere more numerous, yet nowhere is this enjoyment more vividly displayed." Mr. Bates mentions a peculiar feature in some of the colossal trees which here and there monopolize a large {184} space in the forests. The height of some of these giants he estimates at from 180 to 200 feet, whose "vast dome of foliage rises above the other forest trees as a domed cathedral does above the other buildings in a city." In most of the large trees of different species is to be seen "a growth of buttress-shaped projections around the lower part of their stems. The spaces between these buttresses--which are generally thin walls of wood--form spacious chambers, and may be compared to stalls in a stable; some of them are large enough to hold half-a-dozen persons." What are these buttresses, how do they originate, and what is their use? We have already seen how great is the competition amongst the trees of a primeval forest, and how every square inch is eagerly battled for by the number of competitors. In consequence of this it is obvious that lateral growth of roots in the earth is a difficult matter. "Necessity being the mother of invention," the roots, unable to expand laterally, "raise themselves ridge-like out of the earth, growing gradually upward as the increasing height of the tree required augmented support." A beautiful compensation, truly, and full of deep interest! As Londoners add upper stories to their houses where competition has rendered lateral additions impossible, so these gigantic trees, in order to sustain the massive crown and trunk, strengthen their roots by upper additions.