It must not be for a moment conceived that the light described as brilliant, and like to a sea of “liquid fire,” is of the same character as the flashes produced by the volcano, or by lightning, or meteors. No: it is the light of phosphorus, as the matter truly is, pale, dull, approaching to a white or very pale yellow, casting a melancholy light on objects around, only emitting flashes by collision. To read by it is possible, but not agreeable; and, on an attempt being made, it is almost always found that the eyes will not endure the peculiar light for any length of time, as headaches and sickness are often occasioned by it. I have frequently observed at Singapore, that, although the tranquil water exhibits no particular luminosity, yet when disturbed by the passage of a boat, it gives out phosphoric matter, leaving a brilliant line in the boat’s wake, and the blades of the oars when raised from the water seem to be dripping with liquid phosphorus. Even between the tropics, the phosphoric light is increased or diminished in its degree of brilliancy, in a very slight difference of latitude; on one day it would be seen to a most magnificent extent, on the next it would be perhaps merely a few luminous flashes. It might proceed from the shoals of marine animals, that caused the brilliancy to be less extensively distributed over one part of the ocean than another. That I am correct in asserting that some of the animals which occasion the phosphoric light, emitted by the ocean, do travel in shoals, and are distributed in some latitudes only in a very limited range, I insert two facts which occurred during this voyage, and which will no doubt be regarded as interesting.