Frank Allen

Phys. Rev. (Series I) 11, 257 (1900) - Published 1 November, 1900

W. P. Boynton

Phys. Rev. (Series I) 11, 291 (1900) - Published 1 November, 1900

John Cutler Shedd

Phys. Rev. (Series I) 11, 304 (1900) - Published 1 November, 1900

Phys. Rev. (Series I) 11, 316 (1900) - Published 1 November, 1900