STYLOBATA

, or Stylobaton, in Architecture, the same with the pedestal of a column. It is sometimes taken for the trunk of the pedestal, between the cornice and the base, and is then called truncus. It is also otherwise named abacus.

SUBCONTRARY posi- tion, in Geometry, is when two equiangular triangles, as VAB and VCD are so placed as to have one common angle V at the vertex, and yet their bases not parallel. Consequently the angles at the bases are equal, but on the contrary sides; viz, the [angle]A = [angle]C, and the [angle]B = [angle]D.

If the oblique cone VAB or Vab, having the circular base AEB, or aeb, be so cut by a plane DEC, that the angle D be = the [angle]B, or the [angle]C = [angle]A, then the cone is said to be cut, by this plane, in a Subcontrary position to the base AEB, or aeb; and in this case the section DEC is always a circle, as well as the base AEB or aeb.