Visual Measurements of the Polarization of the Solar Corona
<p>Visual polarization measurements were made at the eclipse of February 14, 1934, with a modified Lyot-type polarimeter attached to a four-inch equatorially-mounted refractor. The objective was stopped down to 1 1/2 inches to reduce polarization effects the instrument. Distances from the moon...
Internet
https://thesis.library.caltech.edu/3465/1/Johnson_jj_1935.pdfJohnson, Josef Jerome (1935) Visual Measurements of the Polarization of the Solar Corona. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/FBFH-ER25. https://resolver.caltech.edu/CaltechETD:etd-09112007-075222 <https://resolver.caltech.edu/CaltechETD:etd-09112007-075222>