Inoué, S.
Polarization microscopy.  Current Protocols in Cell Biology Unit 4.9: 4.91-4.9.22 (2002).

This unit provides an introduction to polarization microscopy, the optics involved, and practical considerations for observing submicroscopic structures. The unit also includes specific examples for visualization of microtubules in the mitotic spindle, chromatin within maturing spermatids, and the biocrystalline skeletal spicules in larval echinoderms.