SPANNER

An iron instrument used in the manner of a lever to tighten the nuts upon screws. There Is usually a notch at either end of the spanner, to suit nuts and screw-beads of different sixes. BPAR. [Germ, spath.) A mineralogical term, applied to certain crystallized substances which easily break into cubic, or prismatic, or other fragments, with polished surtlso the term spa.th.ose, applied generally to of a sparry fracture. BPAR, FLUOR, or [s. 1159]