Sinkhole may exhibit a visible opening into a cave below. In the case of exceptionally large sinkholes, such as the Minyé sinkhole in Papua New Guinea or Cedar Sink at Mammoth Cave National Park in Kentucky, an underground stream or river may be visible across its bottom flowing from one side to the other. Sinkholes are common where the rock below the land surface is limestone or other carbonate rock, salt beds, or in other soluble rocks, such as gypsum, that can be dissolved naturally by circulating ground water. Sinkholes also occur in sandstone and quartzite terrains. As the rock dissolves,
Dream Caused by the Flight of a Bee Around a Pomegranate a Second Before Awakening typical dream with a lengthy narrative, the consequence of the instantaneousness of a chance event which causes the sleeper to wake up. Thus, as a bar might fall on the neck of a sleeping person, causing them to wake up and for a long dream to end with the guillotine blade falling on them, the noise of the bee here provokes the sensation of the sting which will awaken Gala." The guillotine anecdote refers to a dream reported by Alfred Maury in "Le sommeil et les rêves" ("Sleep and Dreams") and related by Freud in "The Interpretation of Dreams". Dream