The following new and simple method of growing Mushrooms we find described in the French correspondence of the New York Times. The French are noted for their ingenuity and the application of the principles of science to matters of daily life. How far this new method is superior to those now well known, we are unable to say; but it is simple, and we shall try it, and trust some of our readers will do so too. The method is described as follows:

"A method has been discovered and reported to the Academy of Sciences for producing mushrooms artificially in any locality. Dr. Labourette, the discoverer, first develops mushrooms by placing spores on a glass on which he has spread sand and water. He selects the most vigorous ones, and it is with the mycelium of these that he obtains the magnificent specimens of mushrooms he exhibited to the Academy. He disposes his ground in the following manner: Some damp earth, composed of vegetable matter from a swamp, and placed in a cellar, is covered with a layer ten inches thick of sand and river gravel, and this, in turn, by another, composed of plaster derived from the demolition of houses, six inches thick. He sprinkles this earth-bed with water containing two grammes [thirty-one troy grains nearly] of azotate of potash to the square yard, after having first sown thereon the mycelium. The specimens shown at the Academy had grown in six days, and the discoverer asserts that the action of the azotate of potash lasts six years".