Determinate evolution in the color-pattern of the lady-beetles
A 1910 scientific monograph published by the Carnegie Institution in Washington, written by the American zoologist Roswell Hill Johnson on how the colour patterns of lady beetles change across generations. The pictures are plain statistical charts and small line drawings of beetle wing cases with dark spots, so a designer might take from them the look of early twentieth-century scientific diagrams: dotted and solid line graphs, numbered tables, and simple spotted shield shapes.
