gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1901.013.59.08 Addition to a Former Note1 on the Rotation of Points and Planes about an Axis Hudson R. W. H. T. B.A. Fellow of St. John's College, Cambridge

(Communicated by Prof. W. J. Lewis, M.A.)

Miu. Mag. 1900, Vol. XII, p. 343.

 5 1901 13 59 71 72 Copyright © 1901, The Mineralogical Society 1901