The Use of a Slit in Determining Refractive Indices with the Microscope

John William Evans

Lecturer in Petrology, Imperial College of Science and Technology, and Birkbeck College.

Mineralogical Magazine; June 1917 v. 18; no. 84; p. 130-132; DOI: 10.1180/minmag.1917.018.84.07
© 1917, The Mineralogical Society
Mineralogical Society (www.minersoc.org)