THE PHOSPHORESCENCE OF THE SEA. Its Causes.--Noctiluca miliaris.--Phosphorescent Annelides and Beroës.--Intense Phosphorescence of the Pyrosoma atlantica. --Luminous Pholades.--The luminous Shark.--Phosphorescent Algæ. --Citations from Byron, Coleridge, Crabbe, and Scott. 423