Die Schlaf- und Traumzustände der menschlicher Seele, mit besonderer Berücksichtigung ihres Verhältnisses zu den psychischen Alienationen / von Heinrich Spitta.
A German medical treatise by Heinrich Spitta, published in Freiburg im Breisgau in 1892 by J.C.B. Mohr, on sleep, dreaming and their links to mental disorders, drawn from the Royal College of Physicians of Edinburgh collection. The single picture is a line diagram on a tan ground: a sloping curve falls from upper left to a low point, rises to the right, and is crossed by a horizontal dotted baseline with lettered labels and converging rays meeting at a point. A designer might take its clean, schematic chart style, with thin black linework, letter callouts and a diagonal composition for technical graphics.
