BOILING a.
º; for ether, 94.8º; for mercury, about 675º. The boiling point of water is lowered one degree Fahrenheit for about 550 feet of ascent above the level of the sea. -- Boiling spring, a spring which gives out very hot water, or water and steam, often ejecting it with much force; a geyser. -- To be at the boiling point,…
BOVEY COAL n.
A kind of mineral coal, or brown lignite, burning with a weak flame, and generally a disagreeable odor; -- found at Bovey Tracey, Devonshire, England. It is of geological age of the oölite, and not of the true coal era.