Phosphorescence is exhibited chiefly by solids, fluorescence also by liquids and vapors.
Fluorescence is most efficiently excited by the cathode rays of a vacuum tube.
We must conclude that animal light is not a fluorescence of any substance due to radiation produced by the animals themselves.
A trace of alkali usually increases and acid inhibits the fluorescence of solutions.
The ultraviolet rays falling upon this screen were transformed into visible rays by the phenomenon of fluorescence.
That is so, sir, and then we shall have the advantage of invisibility, and the enemy ships will be in fluorescence.
A study of riboflavin metabolism in the American roach by fluorescence microscopy.
Muscarine is isomeric with betain and oxycholin, from which it is separated by its fluorescence and poisonous properties.
The fluorescence from them streamed along our hull and down past the stern, like twin rocket tails.
If the quantity is increased beyond something like the proportion stated, the fluorescence becomes less and very soon disappears.
