Revival

So many books on marriage leave one with a feeling of chaos that it is important to examine any document underlying the discovery of order by searching for underlying tendencies.

Franz Carl Müller-Lyer, born Francis Xavier Hermann Müller (5 February 1857 - 29 October 1916) was a German psychologist and sociologist. The Müller-Lyer illusion is named after him. Müller-Lyer was born in Baden-Baden. He studied medicine at the Universities of Strasbourg, Bonn, and Leipzig. He also studied psychology and sociology at the Universities of Berlin, Vienna, Paris and London. In 1888 he entered into private practice in Munich. The optical illusion he described in 1889 involves the perception of the length of a line when the ends are capped by chevrons. Diverging chevrons seem to make the line longer when compared with converging chevrons. There are numerous similar geometrical illusions known now.

I Transformation of the Love Emotion II. Changes in the Motive for Marriage III. Methods of Obtaining a Wife IV. Phases of Marriage V. Phases of the Social position of Women and their Causes VI. On the Pliability of Sexual Morality VII. The Method of Phases and Directional LinesVIII. The Directional Lines in the Evolution of Sexual Relations