It may not perhaps be generally known even to our own citizens that there is in the town of Riga, N.Y., one mile east of Churchville, on the farm of Linus Pierson, a Mineral Spring, the gases from which are sufficiently combustible to burn as clear and brightly as a lamp, at all times of the day and night, and which is never exhausted. The spring is located near the bathing-house on the farm, and a tube has been constructed, leading from the spring to the rooms, by means of which the house is made sufficiently light without the use of lamps. Some time ago the State Geological Surveyors paid this spring a visit, and analyzed the gas, which was found to be composed of sulphurated and carbonated hydrogen. The water is strongly impregnated with iron.