No CrossRef data available.
Published online by Cambridge University Press: 14 March 2018
Recently A. Johnsen has given a graphical solution by means of the stereographic projection of the problem of determining the constants of a homogeneous shear of a crystal, knowing the initial and final indices of two faces or two edges.
The same problem may be solved more easily by means of the gnomonic projection.
1 Johnsen, A., Neues Jahrb. Min., 1921, vol. ii, p. 1 [Min. Abstr., vol. 1, p. 220].Google Scholar