intermedium

The iron plate ring carries wheels and rollers, through the intermedium of which the turret is revolved.

It rests upon a pivot, p, around which it revolves through the intermedium of rollers placed in a circle, r.

This ring is held by the top piece of the lantern through the intermedium of six spiral springs, c' c''.

Prof. Smith compares the M. intermedium with Peronia erinacea Brb.

The regulator is driven by a belt and through the intermedium of the bevel pinions, u.