What medium was Aurora Australis 1908 by George Marston painted in?

"Aurora Australis" (1908) by George Marston was painted in oil on canvas. This artwork captures the enchanting beauty of the Southern Lights, showcasing Marston's skill in rendering the vibrant colors and atmospheric effects associated with the aurora. The painting is notable for its vivid depiction of the natural phenomenon, reflecting both artistic talent and scientific interest in the Antarctic region.