The stars and their mysteries : an interestingly written account of the wonders of astronomy, told in simple language
A popular astronomy primer by Charles R. Gibson, published in 1916 by Lippincott in Philadelphia and Seeley, Service in London for general readers and older children. The diagrams are small line engravings of spheres, cubes and phase figures built from ruled diagonal hatching, dotted hidden edges and hard outlines, useful as ready-made shading textures and geometric symbols.
