Moss (Formation Of). In order that moss may he renovated, when dug, it is requisite that the pits be left full of water; that they be not too large nor deep, and that the water in them be stagnant. It appears that similar requisites are necessary to the original formation of that substance, either from ligneous or aquatic plants. Moisture seems to be absolutely requisite. Without it no moss is formed of these materials. Let a congeries of ligneous or aquatic plants be formed, however great they may be, if left dry, or not immersed in water, it never will be converted into peat. Such a mass indeed will, even in this ease, undergo certain chemical changes, and form new combinations, but the result will be different from that substance. When exposed to the influences of the atmosphere, it will undergo the putrid fermentation, and be reduced to vegetable mould. In this form it will be destitute of the distinguishing qualities of moss, inflammability, tenacity, and others.