. 1929 Feb 15;15(2):139–146. doi: 10.1073/pnas.15.2.139
THE TRANSFORMATION SPECTRUM OF THE RUBY*
E L Nichols
1, H L Howes
1
1Physical Laboratory, Cornell University
*
An investigation carried out under a grant from the Hecksher Fund of Cornell University.
PMCID: PMC522422 PMID: 16587458