The contact geometry is in many ways an odd-dimensional counterpart of the symplectic geometry, a structure on certain even-dimensional manifolds. The concepts of contact geometry and symplectic geometry are both motivated by the mathematical formalism of classical mechanics, where one can consider either the even-dimensional phase space of a mechanical system or the constant-energy hypersurface, which, being of codimension 1, has odd dimension.

Some herbes are most comestible.

And for rehearsals of those, the musicians of the capelle are required to appear on his demand.

She was among a number of cadets taken to the infirmary with heat sickness on the first day of the rigorous drills called hell week.