Books Received Published: 20 October 1892 The Optical Indicatrix and the Transmission of Light in Crystals R. T. G. Nature 46, 581–582 (1892) Cite this article ...

The Tissot indicatrix is a graphical representation of a field of ellipses on a map that describes its distortion. Tissot studied extensively, from a mathematical viewpoint, the distortion of mappings ...