The Graphical Determination of Angles and Indices in Zones1

G. F. Herbert Smith
Assistant in the Mineral Department of the British Museum
1Communicated by permission of the Trustees of the British Museum

Mineralogical Magazine; July 1913 v. 16; no. 77; p. 326-330; DOI: 10.1180/minmag.1913.016.77.04
© 1913, The Mineralogical Society
Mineralogical Society (