William Whewell
J. A. Gillet & W. J. Rolfe
Lazarus Fletcher
George Nichols Packer
James Baikie
Charles Darwin
Agnes M. Clerke
Camille Flammarion
A. M. Worthington
Ignatius Donnelly
Sir Norman Lockyer
John Tyndall
Arthur Eddington
S. W. Lohman
Frederic Brewster Loomis
Florence Armstrong Grondal
M. A. Orr
Edwin E. Slosson
Norman Lockyer & G. M. Seabroke
Charles Nordmann
Ptolemy (tr. J. M. Ashmand)
Alexander Moszkowski
George C. Comstock
