In the second instance, our attention was centred in a small jelly-fish swimming about in a quiet pool, its translucent body being scarcely distinguishable but for the beautiful flashes of iridescent light it was continually giving off in the bright sunshine. This beautiful object might, without exaggeration, be truly termed a living gem. Transferring it to a glass of sea water for a closer inspection, our curiosity was amply rewarded. In shape and size similar to a nutmeg, its body was divided by eight equidistant bands running, as it were, from its North to its South Pole. Two long filamentous tentacles streamed from the lower portion of the animal, and were constantly being shot forth and withdrawn into its body, probably concerned in some way in the animal’s nutrition. Along one side of each tentacle were ranged delicate filaments, scarcely perceptible to the naked eye, and were probably of service in entangling the minute food forms contained in the water. Each of the eight vertical bands was seen to be furnished with minute plates overlapping each other like the plume of a feather. These plates, being continually in motion, were the means by which the animal was propelled through the water; by reversing the action it moved backwards, and by moving those on one side only, a rotary motion was obtained, the action of the plates producing the most brilliant prismatic effects. Call these plates paddles, and their different movements a-head, a-stern, port and starboard, and man’s wonderful invention the paddle-wheel does not appear so very “new under the sun.” The various motions man obtains by means of ponderous machinery are here vested in this simple, almost structureless animal, which has aptly been likened to a drop of animated sea water, and the facility with which it rises to the surface or descends to any depth might furnish hints towards the solution of the submarine vessel, which is at present so engrossing the attention of naval authorities the world over. Dwellers by the sea at this season of the year should have little trouble in procuring specimens of this most beautiful and interesting animal, which would certainly prove to them “a thing of beauty and a joy for”--well, several days, if the water is renewed. _JULY 1901._ Excessive heat, coupled with an unusual continuance of fog, have been the principle features of this month. The continual booming of our explosive fog-signal every five minutes, night and day, would be rather apt to “get on” a stranger’s nerves were he compelled to sleep within a few feet of it; as a rule, it does not disturb us in the least, but with such protracted spells as we have had this month it does become a trifle irksome. The first shot generally sends the beads of some of the window cases rattling down the traps. This has a more disturbing effect on us when asleep than the actual shot itself, of which we are just dimly conscious.