21. His new instrument works by reading volcanic gases from a distance, using a small telescope linked to a chemical sensor. 22. At lo, Galileo found not only glowing volcanic gases but also glowing lava hotter than what flows from terrestrial volcanoes. 23. Indonesia's Mount Anak Krakatoa exploded repeatedly over the weekend, spewing volcanic gases and rocks into the air, a report said Monday. 24. Soldiers say they smelled a foul odor but it did not smell like sulfur, which is often found in volcanic gases . 25. Mount Vesuvius spewed a deadly cloud of volcanic gas , stones, and ashfall deposits, the most well known being Pompeii and Herculaneum. 26. Sadly, her much less attractive sidekick gets swallowed up by a crack full of superheated volcanic gas in an early scene. 27. He suggests the mysterious phenomenon was caused by flammable natural gas or volcanic gas escaping from a small vent in the ground. 28. He also worked on volcanic gas analyses, using the methods of Robert Bunsen, notably on the island of Santorini ( Greece ). 29. The instruments would sense the chemical and mineral contents of the plumes, such as silicate particles and a volcanic gas , sulfur dioxide. 30. The peak has not erupted in historic times, although it emits quantities of volcanic gas and its sides are streaked with sulfur deposits.
