BILL n.
directed, dangers of the sea excepted. It is usual for the master to sign two, three, or four copies of the bill; one of which he keeps in possession, one is kept by the shipper, and one is sent to the consignee of the goods. -- Bill of mortality, an official statement of the number of deaths in a place or district w…
BINARY a.
ng by two, as in common arithmetic by ten. Thus, 1 is one; 10 is two; 11 is three; 100 is four, etc. Davies & Peck. -- Binary compound (Chem.), a compound of two elements, or of an element and a compound performing the function of an element, or of two compounds performing the function of elements. -- Binary logarith…
BLOCK SYSTEM n.
A system by which the track is divided into short sections, as of three or four miles, and trains are so run by the guidance of electric, or combined electric and pneumatic, signals that no train enters a section or block until the preceding train has left it, as in absolute blocking, or that a train may be allowed to…
BLUE a.
as a night signal at sea, and in military operations. -- Blue mantle (Her.), one of the four pursuivants of the English college of arms; -- so called from the color of his official robes. -- Blue mass, a preparation of mercury from which is formed the blue pill. McElrath. -- Blue mold, or mould, the blue fungus (As…