Evening Republican, Volume 23, Number 71, Rensselaer, Jasper County, 22 March 1920 — Tree That Rotates. [ARTICLE]

Tree That Rotates.

t A cross section of a great old spruce free from Alaska tells the story of a tree which executed a spin, like a bal-let-dancer. This cross section shows a-, most peculiar structure, which has caused a great deal of speculation among the various foresters throughout the country, and a very Interesting explanation Is advanced In American Forestry. It is known that a tree grown at a slant forms on the lower side bf the trunk a dense reddish wood known as “rotholz.” This spiral in this ease ls of such sort, and as it Is a continuous formation; winding from the center to within half an inch from the circumference. It Is surmised that It was growing in an inclined position on the edge of a glacier, where by some shifting It was caused to rotate, so that all sides of the tree were successively on the downward side. as the tree grew, and its rotation continued slowly, the ‘‘rotholz”• developed into a spiral.