A gentleman was skating in a first floor, and had been several times warned by artificial ice-man Snooks not to pass over a certain spot, for it was known there was a large chandelier immediately beneath, the great heat from which, by thawing the artificial ice, might render it dangerous. The gentleman, however, persisted; when, following the usual course, the Humane Society caused ropes to be thrown across from side to side, which might at all events catch the skates, if not check the boldness of the skaters. Luckily, the precaution took effect, tripping the gentleman up, and breaking his fall; when another artificial ice-man, seeing the danger, resorted to the customary experiment of placing a ladder immediately over the hole into which the skater had been plunged. This course is always adopted on natural ice; for, as a person before drowning is supposed to rise three times, it is desirable to prolong his chance by preventing him from rising at all—even for the first time—as long as possible. Unfortunately, there was no boathook at hand—an instrument found so useful in cases of accident on natural ice, or it is probable that the individual might have been fished up with the greatest facility. The gentleman was now immersed in mortar, and, hanging on by a rafter, presented a complete case of suspended animation for several minutes. Artificial ice-man Snooks immediately plunged in among the laths, while the plaster cracked and gave way at every step he took, in the most frightful manner. He had previously made fast a rope to a hook in the ceiling above, and the unfortunate individual, who clung to his preserver, was thus extracted from his perilous position. The usual remedies were promptly resorted to. He was held up for several minutes by the heels, to allow the dust and plaster to escape from his mouth, and was then taken to the receiving-house, where brandy-and-water were administered in such copious draughts, and with such excellent effect, that he soon lost all sense of the accident. [Illustration: A NEW ART-IF-ICE—Doubly Hazardous. ] The Society would earnestly recommend the following precautions to all who are in the habit of resorting to the artificial ice:— Always select, if possible, a ground floor; and, indeed, from the specimens of skating exhibited every day by the horses, it would seem that the wooden pavement is better adapted than anything else to the purpose of glaciarium. When you feel yourself going into a hole, throw yourself on your back, when the artificial ice-man will probably dash a ladder on to your face; and if you can contrive to get your head through the rounds of the ladder, you are drawn up easily. Never venture where you see a board with the word "Dangerous." You may be sure that the Society's men are aware of a hole, which, as they have made it themselves by sticking up the board, they can have made no mistake about.