The straight line in which the vertical polar plane cuts the plane of the circle of contact is called the dirigent. As there are in general two circles of contact, there are two dirigents, and they are parallel to the diretrices.

‘Smart-ass, know-it-all, arrogant pricks, with their terrorist sympathies, their hobosexual neighbors — ’ ‘Hobosexual?’ ‘Bum fuckers! Fags!’

Moreover, the interesting forms of which they are a part probably help to stabilify the essential democracy of the British government.

Certain minerals may exsolve into the atmosphere from an erupting volcano.