Novel Safety Lamp

The new safety lamp for mines, operating upon a peculiar principie, is reported as being in successful tise in Germany. A peculiarity of this lamp is noted - namely, that it is not closed in any special way, like other lamps, and it matters very little whether or not the workman, disregarding the regulations of the mine, succeeds in opening the lamp, for there is a special arrangement by means of which the flame is extingnishable at the same instant. This is explained by there beiug in the interior of the lamp glass a spring which is compressed when the upper piece is screwed down, which enables a cap to opérate npon the wiek in such a manner asto shift it aside, facilitating the lighting of the lamp and afterward the combustión. When the spring is worked in the contrary direction, the cap again operates upon the wiek, and the flame ceases the moment the cap comes in contact with the air. The lamp can be lighted without being opened.