The loss of manure is a subject which demands most serious attention. Until within a few years, little was known about the true character of manures, and consequently, of the importance of protecting them against loss. The first causes of waste are evaporation and leaching. EVAPORATION. Name a solid body which evaporates. What takes place when a dead animal is exposed to the atmosphere for a sufficient time? What often assist the evaporation of solids? Evaporation is the changing of a solid or liquid body to a vapory form. Thus common smelling salts, a solid, if left exposed, passes into the atmosphere.
