Scientific Notes

Sulphur, though insoluble ín most liquids, can be dissolved in hot linseed oil. The natives of ludia say that the baya bird lights up her nest with fireflies. To provide healthf ui air about two thousand cubic feet per hour is necessary for an adult. One pound oí grapo akins, placed in a white-hot retort, will produce, in seveu minutes, three hundred and flfty quarts of excellent gas, with a white flame, odorless, and with less smoke than that f rom pit coal. ïo make eisten is and tanks watertight, paint thickly on the inside with a mixture of eight parts of melted glue and four of linseed oil, boiled with litharge. In forty-eight hours it will be so hard that the tank can be filled with water. The apparatus consista chielly of a bent tube, at the lower end of which is a tiny glass lantern, while the upper end terminates in an eye piece. In use, the lower end of the tube is passed Lato the stomach through the mouth and esopbagus, the upper one projecting from the mouth rar enougli for the eonvenience of the operator. Small wires conduct anelectric current along the tube to the lantern, where a platinum wire is rendered incaudeseent by the electricity, thus illuminating every wit ol' the stomach. The lantern consiats of two globes, one within the other, bet ween which a stream of water is passed to prevent any uncomfortable heating of the outside. Through the small window in the lantern the images from the stomach travel along the tube to the eye-piece, being bent by prisms sufliciently to pass around the curve. By au ingenious contrivance the window is revolved at pleasure, ko that any portion of the stomnch's contents may in turn be brought to view. This new scientific marvel Las been in actual use in Vienna, and will probably prove valuable to medical men in studying digestión and diseases of the stomach.