History & Culture. Strictly speaking, a cloister is a square or quadrilateral enclosure, surrounded by covered walkways. Cloisters are sometimes attached to a college and more often to a cathedral, but are usually associated with monasteries and convents.
Scent plays an important role in lupine communications. A wolf is capable of smelling the details of an odor with a dozen times more accurately than a domestic canine, and probably a hundred times more accurately than a human being.cent plays an important role in lupine communications. A wolf is capable of smelling the details of an odor with a dozen times more accurately than a domestic canine, and probably a hundred times more accurately than a human being.
By nature, propane is clear and contains no scent at all. For safety purposes propane. companies add a substance known as ethyl-mercaptan to the propane fuel. Ethyl-. mercaptan has a strong rotten egg, or skunk-like scent, which allows the consumer to. smell it in the case of a leak.