H. L. Howes

The Blue Glow

E. L. Nichols, H. L. Howes, 1922 .

Cathodo-luminescence and the luminescence of incandescent solids,

E. L. Nichols, D. Wilber, H. L. Howes, 1928 .

THE TRANSFORMATION SPECTRUM OF THE RUBY.

E. L. Nichols, H. L. Howes, 1929, Proceedings of the National Academy of Sciences of the United States of America.

Note on the Rare Earths as Activators of Luminescence

E. L. Nichols, H. L. Howes, 1926 .

The Luminescence of Incandescent Solids

E. L. Nichols, H. L. Howes, 1922 .

The Photoluminescence of Flames. II

E. L. Nichols, H. L. Howes, 1923 .