BLUEBIRD n.
ia sialis), very common in the United States, and, in the north, one of the earliest to arrive in spring. The male is blue, with the breast reddish. It is related to the European robin. Pairy bluebird (Zoöl.), a brilliant Indian or East Indian bird of the genus Irena, of several species.
BOILER n.
A strong metallic vessel, usually of wrought iron plates riveted together, or a composite structure variously formed, in which steam is generated for driving engines, or for heating, cooking, or other purposes.