The chief object of the lecture was to describe the properties of Hertzian waves and their reflection, absorption and transmission, and many brilliant quasi-optical experiments were exhibited.
"Hertzian Wave Wireless Telegraphy"
John Ambrose Fleming
What is still more to the point, he observes, that the defects noted are all theoretical, while the purpose of the eye is practical, and that if theoretically more perfect as an optical instrument, it would be practically less serviceable.
"The Old Riddle and the Newest Answer"
John Gerard
Either because Jules Thessaly had moved nearer to him, or by reason of an optical delusion produced by the half-light, the space between them seemed to have grown less-not only physically, but spiritually.
"The Orchard of Tears"
Sax Rohmer