John N. De Lamater, A Revised and Illustrated Treatise On Grain Stacking
“ Two stakes, one eight and the other ten rods away, and in line with the center of foundation, will sometimes assist the stacker in keeping his stack well balanced, for at a glance he can tell whether the center is in line with the stakes. A man may build, as his fancy dictates, either round, elliptical or square, but in all, the same general principles must be observed—the lower part of the stack built straight up; put in a bulge which settles down around and nearly conceals the lower part, leaving the center of the bulge high; filling the middle to support the center of the top. ”
