“Unlike other large Uranian moons, the surface of Umbriel has remained unchanged since the early times of the Solar System.”

“Several of the Uranian moons can be seen, along with bright areas on the cloud-canopied planet itself.”

“It was more than sixty years before the next two Uranian moons, Ariel and Umbriel, were discovered.”

“Next boil it along with cupric oxide, which precipitates only the uranic and ferric oxides.”

“The chief oxides of uranium are the protoxide and the sesquioxide, or uranic oxide.”

“Uranous salts are converted into uranic by boiling with nitric acid or other oxidising agents.”

“In the mean time the French scientist obtained radiations from metallic uranium and from uranous salts.”

“Uranous salts are converted into uranic by boiling with nitric acid or other oxidising agents.”