The normal elementary geometry : embracing a brief treatise on mensuration and trigonometry : designed for academies, seminaries, high schools, normal schools, and advanced classes in common schools
A school geometry textbook with sections on mensuration and trigonometry, written by Edward Brooks and published in Philadelphia by Christopher Sower Co. in 1884 for academies, normal schools, and high school classes. The plates are line diagrams of solids — prisms, pyramids, and tetrahedra drawn in oblique projection with lettered vertices and dashed hidden edges — usable as wireframe skeletons, faceted line ornament, or serif letter-and-line compositions.
