It seems incredible that the Luminiferous ether, which is supposed to pervade all space, should present absolutely no resistance to the motion of stars and planets rushing through it with velocities which in many cases exceed 50,000 miles per hour.
"A Text-Book of Astronomy"
George C. Comstock
This thing we call the Luminiferous ether.
"The Approach to Philosophy"
Ralph Barton Perry
Hypothetical terms, such as "ether," "Luminiferous-medium," and so forth, only conceal our ignorance.
"Creation and Its Records"
B.H. Baden-Powell