PETROLEUM n.
appearance, composition, and properties. It is refined by distillation, and the products include kerosene, benzine, gasoline, paraffin, etc. Petroleum spirit, a volatile liquid obtained in the distillation of crude petroleum at a temperature of 170° Fahr., or below. The term is rather loosely applied to a considerable…
PHYSOSTOMI n.
ir bladder is provided with a duct, and the ventral fins, when present, are abdominal. It includes the salmons, herrings, carps, catfishes, and others.
PICARIAE n.
An extensive division of birds which includes the woodpeckers, toucans, trogons, hornbills, kingfishers, motmots, rollers, and goatsuckers. By some writers it is made to include also the cuckoos, swifts, and humming birds.